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Anna adit, Mühlbach am Hochkönig, St. Johann im Pongau District, Salzburg, Austria
0,2 mm globules of Gold Amalgam found in Anna adit debris and photographed by W. Stoll
© W. Stoll
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Sony Alpha 7R ii, bellows, Mitutoyo M Plan 10x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Minute golden Weishanite crystals. Analyzed. Collection and photo: Stephan Wolfsried
© Stephan Wolfsried 12/2016
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Sony Alpha 7R ii, bellows, Mitutoyo M Plan 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Golden Weishanite crystal. Collection and photo: Stephan Wolfsried
© Stephan Wolfsried 12/2016
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Weishanite is a rare gold amalgam. From Keystone mine it forms hexagonal crystals close to magnolite.
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Partial golden metallic crystals of weishanite on a matrix of goethite and quartz. Other minerals associated but not in the photograph are magnolite, coloradoite, and ferrotellurite. I obtained this specimen from Joy Desor. Although this weishanite has not been analyzed, similar material has been. Also, from what I have been told, the ...
© Alex Earl 2017
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Hexagonal, barrel shaped crystals of weishanite on quartz. Associated mineral, not in the photograph is magnolite. Acquired from and analyzed by Joy Desor. Brent Thorne specimen and photograph.
© Brent Thorne 2017
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Weishanite is a rare gold amalgam. From Keystone mine it forms hexagonal crystals close to magnolite.
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM image of weishanite in backscatter mode
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
several crystals of hexagonal weishanite forming an aggregate, SEM image in backscatter mode
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM image of hexagonal weishanite crystals
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM-image on Weishanite (Whn) from the Keystone Mine, Magnolia Mining District, Colorado (JEOL JSM-6460, 20kV, BSE detector, FOV ~ 280µm). Right hand side: EDS indicates two variants of Weishanite with distinct mercury concentration: 30 - 34 at% Hg for the high-Hg variant Whn-1 (upper spectrum) and 15 - 20at% Hg for the low-Hg variant Whn-2 ...
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM-image of Weishanite (Whn) with minor Coloradoite (Clr) from the Keystone Mine, Magnolia Mining District, Colorado (JEOL JSM-6460, 20kV, BSE detector, FOV ~ 660µm). EDS indicates two variants of Weishanite with distinct mercury concentration . The low-Hg variant shows fissures probably caused by gradual mercury loss. EDS data see parent image.
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Sony Alpha 7R ii, bellows, Mitutoyo M Plan 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Golden Weishanite crystal. Collection and photo: Stephan Wolfsried
© Stephan Wolfsried 12/2016
Anna adit, Mühlbach am Hochkönig, St. Johann im Pongau District, Salzburg, Austria
0,2 mm globules of Gold Amalgam found in Anna adit debris and photographed by W. Stoll
© W. Stoll
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Sony Alpha 7R ii, bellows, Mitutoyo M Plan 10x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Minute golden Weishanite crystals. Analyzed. Collection and photo: Stephan Wolfsried
© Stephan Wolfsried 12/2016
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Weishanite is a rare gold amalgam. From Keystone mine it forms hexagonal crystals close to magnolite.
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Partial golden metallic crystals of weishanite on a matrix of goethite and quartz. Other minerals associated but not in the photograph are magnolite, coloradoite, and ferrotellurite. I obtained this specimen from Joy Desor. Although this weishanite has not been analyzed, similar material has been. Also, from what I have been told, the ...
© Alex Earl 2017
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Hexagonal, barrel shaped crystals of weishanite on quartz. Associated mineral, not in the photograph is magnolite. Acquired from and analyzed by Joy Desor. Brent Thorne specimen and photograph.
© Brent Thorne 2017
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Weishanite is a rare gold amalgam. From Keystone mine it forms hexagonal crystals close to magnolite.
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM image of weishanite in backscatter mode
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
several crystals of hexagonal weishanite forming an aggregate, SEM image in backscatter mode
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM image of hexagonal weishanite crystals
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM-image on Weishanite (Whn) from the Keystone Mine, Magnolia Mining District, Colorado (JEOL JSM-6460, 20kV, BSE detector, FOV ~ 280µm). Right hand side: EDS indicates two variants of Weishanite with distinct mercury concentration: 30 - 34 at% Hg for the high-Hg variant Whn-1 (upper spectrum) and 15 - 20at% Hg for the low-Hg variant Whn-2 ...
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
SEM-image of Weishanite (Whn) with minor Coloradoite (Clr) from the Keystone Mine, Magnolia Mining District, Colorado (JEOL JSM-6460, 20kV, BSE detector, FOV ~ 660µm). EDS indicates two variants of Weishanite with distinct mercury concentration . The low-Hg variant shows fissures probably caused by gradual mercury loss. EDS data see parent image.
