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Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group coated with gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
white rosettes and ball shaped aggregates of Gonnardite on Phillipsite, field of view 30 mm, photographer Markus Schäfer, collection C.&H. Schäfer
© Christof Schäfer
Basalt quarry, Děpoltovice, Karlovy Vary District, Karlovy Vary Region, Czech Republic
White gonnardite sprays on aggregates of bohmite. Gonnardite and bohmite was confirmed by PXRD and EMPA-WDS.
© BB
Big Tree Creek, Yacolt, Clark County, Washington, USA
White gonnardite covers compact, radial, blue thomsonite-Ca on green smectite rarely in some of the Eocene basalt near Big Tree Creek, Yacolt, Clark County, Washington. Specimen was collected by Rudy Tschernich in 1987. This specimen is in the Rudy Tschernich Zeolite Collection, No. RWT5677, at the Rice Northwest Museum of Rocks and Minerals, ...
© Rudy W. Tschernich
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
A tiny fluorite crystal on top of a natrolite crystal coated with gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Vevja Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
3.23 mm group of Gonnardite tufts. Collection Domenico Preite photo Matteo Chinellato
© Chinellato Matteo - Chinellatophoto.com
Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Gonnardite Crystals in spray form white,with Pyroxene green and Philipsite Crystals clear, p.w. 1.80 mm , coll. Cor Kokke , photo Ko Jansen.
© Ko Jansen
Steinberg, Mühldorf bei Feldbach, Feldbach, Südoststeiermark District, Styria, Austria
Fov ca. 6 mm peter neschen collection (3296)
© neschen
Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Ballshaped aggregates of gonnardite crystals from Graulay, Eifel, Germany, collected by Christof Schäfer in 2011. My catalog number 9367. FOV 3.4 mm.
© OT. Ljostad
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Found Sept 1996. This is a specimen of gonnardite on natrolite. The gonnardite fluoresces bluish-white, the natrolite, which forms the cores of the crystals, and is visible on the ends of broken ones, does not fluoresce. In addition, there is a white mineral that fluoresces very bright blue. I don’t know what it is and there is probably not ...
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group coated with gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal with a coating of gonnardite. Rui Nunes' specimen and photo, 2008.
© Rui Nunes 2008
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2008.
© Rui Nunes 2008
Alum Mountain Mining District, Grant County, New Mexico, USA
Hemispherical white gonnardite crystal cluster 15 mm diameter on pocket-filled basalt matrix. Two internal zones fluoresce blue-white under UV illumination. With old Ray DeMark label. Ex. A. Stevenson collection #692. Overall size of mineral specimen: 25x22x12 mm. Size of individual crystals: 6 mm.
© 2001 John H. Betts
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
2.4cm x 2.1cm x 1.6cm Came with a lable for "Tetranatrolite" which was discontinued in 1999. Purchased in Tucson February 2007. Collection of Danny Jones.
© Danny Jones
"Cornorotto" locality, Chiavon Nero creek, Fara Vicentino, Vicenza Province, Veneto, Italy
Gonnardite crystals with analcime; F.O.V. 1,7 mm. Collection and photo A. Zordan.
© Antonio Zordan
Horní Hrad, Krásný Les, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Radial aggregate of white gonnardite in the vug of the volcanic rock.
© Jakub Jirásek, 2024
"Cornorotto" locality, Chiavon Nero creek, Fara Vicentino, Vicenza Province, Veneto, Italy
Aggregates of short prismatic gonnardite crystals in a vug of basaltic matrix.
© Volker Betz (2025)
Dernbach, Wirges, Westerwaldkreis, Rhineland-Palatinate, Germany
Sample provided by my good friend Stephen Michalski.
Sar-e-Sang River, Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan
White Gonnardite replacing Blue Hauyne. Mark Mauthner photo.
© Mark Mauthner
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Rhombohedral Calcite crystals and white ball-shaped Gonnardite on Phillipsite, field of view is 40 mm, collection C.&H. Schäfer
© Christof Schäfer
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
white balls of "tetranatrolite" up to 1.8 mm Photo Enrico Bonacina, Collection Domenico Preite
© Enrico Bonacina
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
FOV 5 mm. Collection Bernd Ternes, photo Stephan Wolfsried
© Stephan Wolfsried 9/2009
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
The main xl is 2.3 cm tall and has a cross section of 1.2 x 1.0 cm. Found August 28th 1999. This is from a miarolitic cavity and the whole back side is a "contact". The white material is just a shell (about 1-2 mm) surrounding typical glassy natrolite. However I don't think this outer shell is gonnardite (as is common at MSH) because it ...
Little Deerpark Quarry, Glenarm, County Antrim, Northern Ireland, UK
A vug approximately 50 mm wide filled with small clear natrolite and bright orange gmelinite crystals. On the left of the vug there is a cross-section through a 'ball' of natrolite crystals which shows white gonnardite at its core.There are also some small clusters of analcime on the bottom right of the photo. Photo and collection - TB
© Causeway Minerals
Crastu Muradu Quarry, Osilo, Sassari Province, Sardinia, Italy
A very nice pink gonnardite of 4 mm with natrolite needles; overall matrix size 5x6 cm
© webminerals s.a.s
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
Gonnardite from Bundoora Quarry, Darebin Creek, City of Whittlesea near Melbourne, Victoria. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Großer Teichelberg, Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
4x5 cm.
© Volker Betz (2008)
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
White gonnardite spray with colorless phillipsite crystals in a gonnadite vug. Doug Merson photo and collection, obtained from Rudy Tschernich.
© Doug Merson 2006
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
Specimen size 7,2 x 5,3 cm; Chris Auer photo and collection, self collected in 1983
© AC
La Chaux de Bergonne, Gignat, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
Gonnardite Field of view 10 mm Photo and Collection Patrice Queneau
© Patrice.Queneau
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Picture width 4 mm. Collection and Photograph Stephan Wolfsried
© Stephan Wolfsried 2005
Hochberg quarry, Nieder-Ofleiden, Homberg, Vogelsbergkreis, Giessen Region, Hesse, Germany
55x50 mm. From the 1970´s.
© Volker Betz (2008)
Campo de Calatrava volcanic field, Ciudad Real, Castile-La Mancha, Spain
White spheres of Gonnardite up to 3mm on Phillipsite-Ca - Overall size 5x3x2cm - December of 2005
© Photo & Collection of Martins da Pedra
Halápi Hill, Zalahaláp, Tapolca District, Veszprém County, Hungary
White gonnardite spheres in cavity of basalt. Overall size of cavity:21*20mm
© Tamás Ungvári Collection
Großer Teichelberg, Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
Colorless gonnardite crystals on unidentified white mineral coating basaltic matrix. This specimen was sold to me as paranatrolite, but in Earth surface environments paranatrolite becomes dehydrated to gonnardite. There are also reports of paranatrolite dehydrating to tetranatrolite, but the latter has been found to be the same as gonnardite, so ...
© Norman King
Cerro Moreno volcano, Almagro, Ciudad Real, Castile-La Mancha, Spain
Spherical aggregates of Gonnardite on Phillipsite-Ca; 50x37mm field of view. Collected in 2006
© JRGL (Photo & Col)
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
Hemispherical balls of acicular gonnardite. Obtained in 1990. Specimen 1462 in the collection of the photographer, Alan Goldstein. FOV = 2 cm
© Alan Goldstein
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
FOV 12 mm; Chris Auer photo and collection (ex J.Metzger coll.)
© AC
Campo de Calatrava volcanic field, Ciudad Real, Castile-La Mancha, Spain
Group of white spheres of Gonnardite up to 3mm with crystals of sticky Calcite up to 4mm on Phillipsite-Ca - Overall size 6x3x2,5cm - January of 2006
© Photo & Collection of Martins da Pedra
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Lathe like clusters of gonnardite Canon T21 on Nikon PB-6 bellows with Nikon 4X conjugate finite objective. 16 frames at .04mm steps stacked with Zerene Stacker Photographed by Douglas Merson. Obtained from László Horváth.
© 2015 Doug Merson
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
White Gonnardite on Phillipsite Size: 3,5 x 2,5 cm Collection and photo: Arliguie M
© Arliguie M
Boral Bluestone quarry, Navigators, Moorabool Shire, Victoria, Australia
Gonnardite with natrolite and calcite in vesicular basalt. Alan Goldstein specimen (#1719) and photo. Obtained in 1997.
© Alan Goldstein
Hemán-tó Hill, Zalaszántó, Keszthely district, Zala County, Hungary
Gonnardite-natrolite mix on phillipsite. Picture size 30x24 mm. Collected in october 2005, analized in 2009.
© Mesics Gábor 2005
Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Thumbnail Graulay specimen. The white globular aggregates with radial structure are Gonnardite (with credits to Günter Frenz for visual determination). White aggregate in the upper right corner is Hielscherite-Thaumasite series.
© Yannick Verbelen 2013
Blackhead Quarry, Dunedin City, Otago Region, New Zealand
White tuffs of Gonnardite. Field of view 5 mm. Specimen and photo Leon Hupperichs.
© Leon Hupperichs
Fara Vicentino, Vicenza Province, Veneto, Italy
White crystals of Gonnardite - max. 2 mm - on colourless crystals of Analcime. The little dark spots on the Gonnardite are unidentified. Photo & Collection Chinellato Matteo. Canon 20D + Canon 100mm macro - Kenko macro tubes
© Chinellato Matteo
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
single aggregate size 6 mm; Chris Auer photo and collection (ex J.Metzger coll.)
© AC
Crastu Muradu Quarry, Osilo, Sassari Province, Sardinia, Italy
Gonnardite crystals to 2 mm with calcite Photo and coll. Antonio Gamboni
© Antonio Gamboni
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Picture width 4 mm. Collection and photo Stephan Wolfsried
© Stephan Wolfsried 6/2008
Midtfjellet Quarry, Malerød, Larvik Commune, Vestfold, Norway
A 2 x 2 cm group of natrolite crystals completely covered with gonnardite, on analcime on matrix. Collected and photographed 7. May 2011 by Peter Andresen.
© Peter Andresen
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
FOV 6 mm. Collection Bernd Ternes, photo Stephan Wolfsried
© Stephan Wolfsried 9/2009
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
Off-white spherules of Gonnardite on basalt matrix. Overall size: 37mm x 27mm x 31mm Personal collection and photo.
© Keith F Compton
Saga 1 Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
group of radiating balls of gonnardite up to 0.5 mm Photo Enrico Bonacina, coll. Preite Domenico
© Enrico Bonacina
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
The soft-looking balls are made up of tufts of gonnardite (which is actually an intergrowth of gonnardite and natrolite] on a centre which is probably thomsonite. Clear twinned chabazites are also present. Field of view: 3.7mm.
© Judy Rowe
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Gonnardite crystals coating microcline. Microcline crystals up to 5,5cm. April 2010
© Pedro Alves
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Gonnardite spheres on Phillipsite. Field of view 8 mm. Specimen and photo Leon Hupperichs.
© Leon Hupperichs
La Chaux de Bergonne, Gignat, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
FOV 10cm White gonnardite spheres in little geodes within a malaphyr basalt; Collection and photo Yves Masson
© Yves Masson
Mokrá quarry, Mokrá, Čichalov, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Druse of white zeolites (PXRD analysed, mixture of gonnardite and thomsonite) on nephelinite matrix. Size 4×3 cm. Collection of author.
© Jakub Jirásek, 2010
San Giorgio di Perlena, Fara Vicentino, Vicenza Province, Veneto, Italy
Gonnardite sphere measure 1,2 cm. diameter.Photo and collection GF. Capolupi
© Gianfranco Capolupi
Tylden quarry, Tylden, Macedon Ranges Shire, Victoria, Australia
Clusters of gonnardite from the basalt quarry at Tylden. As usual in Victoria, the gonnardite is intergrown with natrolite. Field of view: 9mm.
© Judy Rowe
San Giorgio di Perlena, Fara Vicentino, Vicenza Province, Veneto, Italy
White gonnardite crystal spherical aggregate of 9 mm in diameter on transparent and uncoloured crystals of analcime on light green smectite masses ; Specimen size 10x8x8 cm.
© Fabrizio Frattini Photo & Collection
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Nice gonnardite on transparent phillipsite
© Petr Fuchs
Campo de Calatrava volcanic field, Ciudad Real, Castile-La Mancha, Spain
White Gonnardite balls up to 3mm with Calcite crystals up to 4mm on Phillipsite-Ca - January of 2006
© Photo & Collection of Martins da Pedra
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
A cute 2.6 by 1.6 cms group of white balls. JSS specimen and photograph.
© 2007 JSS
Ridge Road quarry, Daylesford, Hepburn Shire, Victoria, Australia
The white sheaf-like aggregates lying on groups of calcite crystals are gonnardite in a mixture with natrolite, as is common in Victorian zeolite localities. Field of view: 5mm.
© Judy Rowe
Moiliili Quarry, Honolulu, Oahu Island, Honolulu County, Hawaii, USA
5x5 cm specimen. By exchange with Rudy Tschernich. Zeolite collection of Volker Betz.
© Volker Betz (2011)
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
A small vugh in Bundoora basalt with fibrous white balls of gonnardite-natrolite intergrowth showing a silky lustre. Field of view: 10mm.
© Judy Rowe
Großer Teichelberg, Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
6.6 x 5.5 x 3.0 cm specimen of gonnardite to 3 mm on an unidentified mineral (possibly gismondine.) Edward Rosenzweig photograph and specimen.
© 2008 by Edward Rosenzweig
Fara Vicentino, Vicenza Province, Veneto, Italy
Gonnardite balls up to 3mm on Analcime - June of 2008
© Photo & Collection of Martins da Pedra
La Chaux de Bergonne, Gignat, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
A 8.3 x 5.2 x 3.1 cm matrix with vesicles lined with white gonnardite crystals to 0.3 cm in size. Nice for this species. Ex Steve Pullman collection; previous label from David Garske noting this was once part of the Gunnar Bjareby collection.
© Weinrich Minerals, Inc.
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group coated with gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
white rosettes and ball shaped aggregates of Gonnardite on Phillipsite, field of view 30 mm, photographer Markus Schäfer, collection C.&H. Schäfer
© Christof Schäfer
Basalt quarry, Děpoltovice, Karlovy Vary District, Karlovy Vary Region, Czech Republic
White gonnardite sprays on aggregates of bohmite. Gonnardite and bohmite was confirmed by PXRD and EMPA-WDS.
© BB
Big Tree Creek, Yacolt, Clark County, Washington, USA
White gonnardite covers compact, radial, blue thomsonite-Ca on green smectite rarely in some of the Eocene basalt near Big Tree Creek, Yacolt, Clark County, Washington. Specimen was collected by Rudy Tschernich in 1987. This specimen is in the Rudy Tschernich Zeolite Collection, No. RWT5677, at the Rice Northwest Museum of Rocks and Minerals, ...
© Rudy W. Tschernich
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
A tiny fluorite crystal on top of a natrolite crystal coated with gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Vevja Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
3.23 mm group of Gonnardite tufts. Collection Domenico Preite photo Matteo Chinellato
© Chinellato Matteo - Chinellatophoto.com
Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Gonnardite Crystals in spray form white,with Pyroxene green and Philipsite Crystals clear, p.w. 1.80 mm , coll. Cor Kokke , photo Ko Jansen.
© Ko Jansen
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Found Sept 1996. This is a specimen of gonnardite on natrolite. The gonnardite fluoresces bluish-white, the natrolite, which forms the cores of the crystals, and is visible on the ends of broken ones, does not fluoresce. In addition, there is a white mineral that fluoresces very bright blue. I don’t know what it is and there is probably not ...
Steinberg, Mühldorf bei Feldbach, Feldbach, Südoststeiermark District, Styria, Austria
Fov ca. 6 mm peter neschen collection (3296)
© neschen
Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Ballshaped aggregates of gonnardite crystals from Graulay, Eifel, Germany, collected by Christof Schäfer in 2011. My catalog number 9367. FOV 3.4 mm.
© OT. Ljostad
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2008.
© Rui Nunes 2008
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group coated with gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal with a coating of gonnardite. Rui Nunes' specimen and photo, 2008.
© Rui Nunes 2008
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Alum Mountain Mining District, Grant County, New Mexico, USA
Hemispherical white gonnardite crystal cluster 15 mm diameter on pocket-filled basalt matrix. Two internal zones fluoresce blue-white under UV illumination. With old Ray DeMark label. Ex. A. Stevenson collection #692. Overall size of mineral specimen: 25x22x12 mm. Size of individual crystals: 6 mm.
© 2001 John H. Betts
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
2.4cm x 2.1cm x 1.6cm Came with a lable for "Tetranatrolite" which was discontinued in 1999. Purchased in Tucson February 2007. Collection of Danny Jones.
© Danny Jones
"Cornorotto" locality, Chiavon Nero creek, Fara Vicentino, Vicenza Province, Veneto, Italy
Gonnardite crystals with analcime; F.O.V. 1,7 mm. Collection and photo A. Zordan.
© Antonio Zordan
Horní Hrad, Krásný Les, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Radial aggregate of white gonnardite in the vug of the volcanic rock.
© Jakub Jirásek, 2024
"Cornorotto" locality, Chiavon Nero creek, Fara Vicentino, Vicenza Province, Veneto, Italy
Aggregates of short prismatic gonnardite crystals in a vug of basaltic matrix.
© Volker Betz (2025)
Sar-e-Sang River, Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan
White Gonnardite replacing Blue Hauyne. Mark Mauthner photo.
© Mark Mauthner
Dernbach, Wirges, Westerwaldkreis, Rhineland-Palatinate, Germany
Sample provided by my good friend Stephen Michalski.
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Rhombohedral Calcite crystals and white ball-shaped Gonnardite on Phillipsite, field of view is 40 mm, collection C.&H. Schäfer
© Christof Schäfer
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
white balls of "tetranatrolite" up to 1.8 mm Photo Enrico Bonacina, Collection Domenico Preite
© Enrico Bonacina
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
FOV 5 mm. Collection Bernd Ternes, photo Stephan Wolfsried
© Stephan Wolfsried 9/2009
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Natrolite crystal group with a coating of gonnardite. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Crastu Muradu Quarry, Osilo, Sassari Province, Sardinia, Italy
A very nice pink gonnardite of 4 mm with natrolite needles; overall matrix size 5x6 cm
© webminerals s.a.s
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
The main xl is 2.3 cm tall and has a cross section of 1.2 x 1.0 cm. Found August 28th 1999. This is from a miarolitic cavity and the whole back side is a "contact". The white material is just a shell (about 1-2 mm) surrounding typical glassy natrolite. However I don't think this outer shell is gonnardite (as is common at MSH) because it ...
Little Deerpark Quarry, Glenarm, County Antrim, Northern Ireland, UK
A vug approximately 50 mm wide filled with small clear natrolite and bright orange gmelinite crystals. On the left of the vug there is a cross-section through a 'ball' of natrolite crystals which shows white gonnardite at its core.There are also some small clusters of analcime on the bottom right of the photo. Photo and collection - TB
© Causeway Minerals
Großer Teichelberg, Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
4x5 cm.
© Volker Betz (2008)
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
Gonnardite from Bundoora Quarry, Darebin Creek, City of Whittlesea near Melbourne, Victoria. Rui Nunes' specimen and photo, 2005.
© Rui Nunes 2005
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
White gonnardite spray with colorless phillipsite crystals in a gonnadite vug. Doug Merson photo and collection, obtained from Rudy Tschernich.
© Doug Merson 2006
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Picture width 4 mm. Collection and Photograph Stephan Wolfsried
© Stephan Wolfsried 2005
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
Specimen size 7,2 x 5,3 cm; Chris Auer photo and collection, self collected in 1983
© AC
La Chaux de Bergonne, Gignat, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
Gonnardite Field of view 10 mm Photo and Collection Patrice Queneau
© Patrice.Queneau
Hochberg quarry, Nieder-Ofleiden, Homberg, Vogelsbergkreis, Giessen Region, Hesse, Germany
55x50 mm. From the 1970´s.
© Volker Betz (2008)
Campo de Calatrava volcanic field, Ciudad Real, Castile-La Mancha, Spain
White spheres of Gonnardite up to 3mm on Phillipsite-Ca - Overall size 5x3x2cm - December of 2005
© Photo & Collection of Martins da Pedra
Halápi Hill, Zalahaláp, Tapolca District, Veszprém County, Hungary
White gonnardite spheres in cavity of basalt. Overall size of cavity:21*20mm
© Tamás Ungvári Collection
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
Hemispherical balls of acicular gonnardite. Obtained in 1990. Specimen 1462 in the collection of the photographer, Alan Goldstein. FOV = 2 cm
© Alan Goldstein
Großer Teichelberg, Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
Colorless gonnardite crystals on unidentified white mineral coating basaltic matrix. This specimen was sold to me as paranatrolite, but in Earth surface environments paranatrolite becomes dehydrated to gonnardite. There are also reports of paranatrolite dehydrating to tetranatrolite, but the latter has been found to be the same as gonnardite, so ...
© Norman King
Cerro Moreno volcano, Almagro, Ciudad Real, Castile-La Mancha, Spain
Spherical aggregates of Gonnardite on Phillipsite-Ca; 50x37mm field of view. Collected in 2006
© JRGL (Photo & Col)
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
FOV 12 mm; Chris Auer photo and collection (ex J.Metzger coll.)
© AC
Campo de Calatrava volcanic field, Ciudad Real, Castile-La Mancha, Spain
Group of white spheres of Gonnardite up to 3mm with crystals of sticky Calcite up to 4mm on Phillipsite-Ca - Overall size 6x3x2,5cm - January of 2006
© Photo & Collection of Martins da Pedra
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Lathe like clusters of gonnardite Canon T21 on Nikon PB-6 bellows with Nikon 4X conjugate finite objective. 16 frames at .04mm steps stacked with Zerene Stacker Photographed by Douglas Merson. Obtained from László Horváth.
© 2015 Doug Merson
Hemán-tó Hill, Zalaszántó, Keszthely district, Zala County, Hungary
Gonnardite-natrolite mix on phillipsite. Picture size 30x24 mm. Collected in october 2005, analized in 2009.
© Mesics Gábor 2005
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
White Gonnardite on Phillipsite Size: 3,5 x 2,5 cm Collection and photo: Arliguie M
© Arliguie M
Boral Bluestone quarry, Navigators, Moorabool Shire, Victoria, Australia
Gonnardite with natrolite and calcite in vesicular basalt. Alan Goldstein specimen (#1719) and photo. Obtained in 1997.
© Alan Goldstein
Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Thumbnail Graulay specimen. The white globular aggregates with radial structure are Gonnardite (with credits to Günter Frenz for visual determination). White aggregate in the upper right corner is Hielscherite-Thaumasite series.
© Yannick Verbelen 2013
Blackhead Quarry, Dunedin City, Otago Region, New Zealand
White tuffs of Gonnardite. Field of view 5 mm. Specimen and photo Leon Hupperichs.
© Leon Hupperichs
Fara Vicentino, Vicenza Province, Veneto, Italy
White crystals of Gonnardite - max. 2 mm - on colourless crystals of Analcime. The little dark spots on the Gonnardite are unidentified. Photo & Collection Chinellato Matteo. Canon 20D + Canon 100mm macro - Kenko macro tubes
© Chinellato Matteo
Basalt quarry, Klöch, Südoststeiermark District, Styria, Austria
single aggregate size 6 mm; Chris Auer photo and collection (ex J.Metzger coll.)
© AC
Crastu Muradu Quarry, Osilo, Sassari Province, Sardinia, Italy
Gonnardite crystals to 2 mm with calcite Photo and coll. Antonio Gamboni
© Antonio Gamboni
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Picture width 4 mm. Collection and photo Stephan Wolfsried
© Stephan Wolfsried 6/2008
Midtfjellet Quarry, Malerød, Larvik Commune, Vestfold, Norway
A 2 x 2 cm group of natrolite crystals completely covered with gonnardite, on analcime on matrix. Collected and photographed 7. May 2011 by Peter Andresen.
© Peter Andresen
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
FOV 6 mm. Collection Bernd Ternes, photo Stephan Wolfsried
© Stephan Wolfsried 9/2009
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
Off-white spherules of Gonnardite on basalt matrix. Overall size: 37mm x 27mm x 31mm Personal collection and photo.
© Keith F Compton
Lugar da Nave quarry, Nave, Monchique, Monchique, Faro, Portugal
Gonnardite crystals coating microcline. Microcline crystals up to 5,5cm. April 2010
© Pedro Alves
Saga 1 Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
group of radiating balls of gonnardite up to 0.5 mm Photo Enrico Bonacina, coll. Preite Domenico
© Enrico Bonacina
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
The soft-looking balls are made up of tufts of gonnardite (which is actually an intergrowth of gonnardite and natrolite] on a centre which is probably thomsonite. Clear twinned chabazites are also present. Field of view: 3.7mm.
© Judy Rowe
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Gonnardite spheres on Phillipsite. Field of view 8 mm. Specimen and photo Leon Hupperichs.
© Leon Hupperichs
La Chaux de Bergonne, Gignat, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
FOV 10cm White gonnardite spheres in little geodes within a malaphyr basalt; Collection and photo Yves Masson
© Yves Masson
Mokrá quarry, Mokrá, Čichalov, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Druse of white zeolites (PXRD analysed, mixture of gonnardite and thomsonite) on nephelinite matrix. Size 4×3 cm. Collection of author.
© Jakub Jirásek, 2010
San Giorgio di Perlena, Fara Vicentino, Vicenza Province, Veneto, Italy
White gonnardite crystal spherical aggregate of 9 mm in diameter on transparent and uncoloured crystals of analcime on light green smectite masses ; Specimen size 10x8x8 cm.
© Fabrizio Frattini Photo & Collection
San Giorgio di Perlena, Fara Vicentino, Vicenza Province, Veneto, Italy
Gonnardite sphere measure 1,2 cm. diameter.Photo and collection GF. Capolupi
© Gianfranco Capolupi
Tylden quarry, Tylden, Macedon Ranges Shire, Victoria, Australia
Clusters of gonnardite from the basalt quarry at Tylden. As usual in Victoria, the gonnardite is intergrown with natrolite. Field of view: 9mm.
© Judy Rowe
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Nice gonnardite on transparent phillipsite
© Petr Fuchs
Campo de Calatrava volcanic field, Ciudad Real, Castile-La Mancha, Spain
White Gonnardite balls up to 3mm with Calcite crystals up to 4mm on Phillipsite-Ca - January of 2006
© Photo & Collection of Martins da Pedra
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
A cute 2.6 by 1.6 cms group of white balls. JSS specimen and photograph.
© 2007 JSS
Boral Limited quarry, Bundoora, City of Whittlesea, Victoria, Australia
A small vugh in Bundoora basalt with fibrous white balls of gonnardite-natrolite intergrowth showing a silky lustre. Field of view: 10mm.
© Judy Rowe
Ridge Road quarry, Daylesford, Hepburn Shire, Victoria, Australia
The white sheaf-like aggregates lying on groups of calcite crystals are gonnardite in a mixture with natrolite, as is common in Victorian zeolite localities. Field of view: 5mm.
© Judy Rowe
Moiliili Quarry, Honolulu, Oahu Island, Honolulu County, Hawaii, USA
5x5 cm specimen. By exchange with Rudy Tschernich. Zeolite collection of Volker Betz.
© Volker Betz (2011)
Fara Vicentino, Vicenza Province, Veneto, Italy
Gonnardite balls up to 3mm on Analcime - June of 2008
© Photo & Collection of Martins da Pedra
Großer Teichelberg, Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
6.6 x 5.5 x 3.0 cm specimen of gonnardite to 3 mm on an unidentified mineral (possibly gismondine.) Edward Rosenzweig photograph and specimen.
© 2008 by Edward Rosenzweig
La Chaux de Bergonne, Gignat, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
A 8.3 x 5.2 x 3.1 cm matrix with vesicles lined with white gonnardite crystals to 0.3 cm in size. Nice for this species. Ex Steve Pullman collection; previous label from David Garske noting this was once part of the Gunnar Bjareby collection.
© Weinrich Minerals, Inc.
