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⇱ Rectorite: Mineral information, data and localities.


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Rectorite

A valid IMA mineral species - grandfathered
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About RectoriteHide

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Formula:
(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
Colour:
White to light brown
Lustre:
Waxy, Greasy, Pearly, Earthy
Hardness:
0½ - 1
Specific Gravity:
2.34 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 1891 by Richard Newman Brackett and John Francis Williams in honor of Colonel Elias William Rector (11 June 1847(49), Little Rock, Arkansas, USA - 29 January 1917, Hot Spring, Arkansas, USA), a politician (Speaker of the Arkansas House of Representatives) and attorney in Hot Springs, Arkansas, who supported the formation of the Arkansas Geological Survey.
A 1:1 regular interstratification of muscovite/illite (dioctahedral mica) and montmorillonite (dioctahedral smectite). Frequently called "rectorite-K" to distinguish it from regularly interstratified paragonite/montmorillonite = "rectorite-Na".


Unique IdentifiersHide

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Mindat ID:
3377
Long-form identifier:
mindat:1:1:3377:6

Similar NamesHide

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HectoriteA valid IMA mineral species - grandfathered - questionableNa0.3(Mg,Li)3(Si4O10)(F,OH)2
Hectorite (of Cox)(Mg,Fe)2Si3O8 · 0.5H2O
Rectorite-KA variety of Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O

IMA Classification of RectoriteHide

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Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(Na,Ca)Al4(Si,Al)8O20(OH)4 · 2H2O
First published:
1891

Classification of RectoriteHide

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9.EC.60

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
71.4.2.7

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
4 : Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
16.2.9

16 : Silicates Containing Aluminum and other Metals
2 : Aluminosilicates of Na

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
RecIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of RectoriteHide

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Waxy, Greasy, Pearly, Earthy
Transparency:
Translucent
Colour:
White to light brown
Hardness:
0½ - 1 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
On {001}
Density:
2.34 g/cm3 (Calculated)

Optical Data of RectoriteHide

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Type:
Biaxial (-)
RI values:
nα = 1.519 nβ = 1.55 nγ = 1.559
2V:
Measured: 5° to 20°, Calculated: 54°
Max. Birefringence:
δ = 0.040
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Dispersion:
r > v

Chemistry of RectoriteHide

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Mindat Formula:
(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
Element Weights:
Element% weight
O53.355 %
Si28.819 %
Al13.843 %
Na2.949 %
H1.034 %

Calculated from ideal end-member formula.
Common Impurities:
Fe,K

Crystallography of RectoriteHide

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Crystal System:
Monoclinic
Cell Parameters:
a = 5.13 Å, b = 8.88 Å, c = 23.85 Å
β = 96.3°
Ratio:
a:b:c = 0.578 : 1 : 2.686
Unit Cell V:
1,079.91 ų (Calculated from Unit Cell)
Z:
2
Comment:
Point Group: n.d.; Space Group: n.d.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
23.8 Å(100)
11.9 Å(65)
3.40 Å(16)
2.971 Å(16)
1.970 Å(12)
4.75 Å(10)
1.827 Å(4)
Comments:
air dried sample; after heating to 600ºC, d(001) = 19.3 Å; after ethylene glycol treatment d(001) = 26.8 Å

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
16 : Low-? aqueous alteration of Hadean subaerial lithologies (see also #23)
Near-surface Processes
22 : Hydration and low-? subsurface aqueous alteration (see also #23)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]

Type Occurrence of RectoriteHide

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Other Language Names for RectoriteHide

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Dutch:Rectoriet
German:Rectorit
Simplified Chinese:累托石
Spanish:Rectorita
Traditional Chinese:累托石

Varieties of RectoriteHide

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Rectorite-KA 1:1 regular interstratification of muscovite/illite (dioctahedral mica) and montmorillonite (dioctahedral smectite) is frequently called "rectorite-K" to distinguish it from regularly interstratified paragonite/montmorillonite = "rectorite-Na".
Rectorite-NaA regularly interstratified paragonite/montmorillonite.
Compare Rectorite-K.

Relationship of Rectorite to other SpeciesHide

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Other Members of Mixed-layer clay minerals:
AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2OMon.
Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
'Glaucony'The term glaucony was defined first by Odin and Létolle (1980) for green minerals in marine sediments formed by ...
TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2

Common AssociatesHide

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Associations Based on Photo Data:
6 photos of Rectorite associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

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9.EC.MeifuiteKFe6(Si7Al)O19(OH)4Cl2Tric. 1 : P1
9.EC.BalestraiteKLi2V5+Si4O12Mon. 2 : B2
9.EC.05TalcMg3Si4O10(OH)2Tric. 1 : P1
9.EC.05MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
9.EC.05WillemseiteNi3Si4O10(OH)2Mon.
9.EC.9.EC.VoloshiniteRb(LiAl1.50.5)(Al0.5Si3.5)O10F2Mon. 2/m : B2/b
9.EC.10FluorluanshiweiiteKLiAl1.5(Si3.5Al0.5)O10F2Mon. 2/m : B2/m
9.EC.10GarmiteCsLiMg2(Si4O10)F2Mon.
9.EC.10GorbunoviteCsLi2(Ti,Fe)Si4O10(F,OH,O)2Mon.
9.EC.10FerripyrophylliteFe3+Si2O5(OH)Mon. 2/m
9.EC.10ManganiceladoniteK(MgMn3+◻)(Si4O10)(OH)2Mon.
9.EC.10LuanshiweiiteKLiAl1.5(Si3.5Al0.5)O10(OH)2Mon. 2/m : B2/b
9.EC.10PyrophylliteAl2Si4O10(OH)2Tric. 1
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2Mon.
9.EC.15FerroaluminoceladoniteK(Fe2+Al◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15FerroceladoniteK(Fe2+Fe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15GanteriteBa0.5(Na,K)0.5Al2(Si2.5Al1.5)O10(OH)2Mon. 2/m : B2/b
9.EC.15KreiteriteCsLi2Fe3+(Si4O10)F2Mon.
9.EC.15RoscoeliteKV3+2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15AluminoceladoniteK(MgAl◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15Tobelite(NH4)Al2(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.15TainioliteKLiMg2(Si4O10)F2Mon. 2/m : B2/m
9.EC.15CeladoniteK(MgFe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromceladoniteK(MgCr◻)(Si4O10)(OH)2Mon. 2 : B2
9.EC.15MontdoriteKFe2+1.5Mn2+0.5Mg0.5Si4O10(F,OH)2Mon. 2/m : B2/m
9.EC.15ChromphylliteKCr2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2Mon. 2/m
9.EC.15'UM1988-22-SiO:AlCaFFeHKLiMg'KLiMgAl2Si3O10F2Mon.
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.20MasutomiliteK(LiAlMn2+)[AlSi3O10]F2Mon. 2 : B2
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2Mon. 2/m : B2/m
9.EC.20'Chloroferrokinoshitalite'(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2
9.EC.20SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2Mon.
9.EC.20HendricksiteKZn3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2Mon. 2/m : B2/m
9.EC.20FluoranniteKFe2+3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20Suhailite(NH4)Fe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EphesiteNaLiAl2(Al2Si2O10)(OH)2Tric. 1 : P1
9.EC.20NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2Mon. 2/m : B2/m
9.EC.20OrloviteKLi2Ti(Si4O10)OFMon. 2 : B2
9.EC.20TetraferrianniteKFe2+3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
9.EC.20ShirokshiniteK(NaMg2)(Si4O10)F2Mon. 2/m : B2/m
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20ShirozuliteKMn2+3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.20FluorophlogopiteKMg3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20Wonesite(Na,K,◻)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4Mon. 2/m : B2/m
9.EC.20'UM2004-49-SiO:AlCsFHKLi'(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
9.EC.20AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.22'Pimelite'Ni3Si4O10(OH)2 · 4H2OHex.
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.30Chlorophaeite(Ca,Mg,Fe)2Fe2Si4O13 · 10H2O
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon. 2/m : B2/m
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon. 2/m : B2/m
9.EC.35ClintoniteCaAlMg2(SiAl3O10)(OH)2Mon. 2/m : B2/m
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2Mon. 2/m : B2/m
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
9.EC.35BityiteCaLiAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)Orth.
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
9.EC.45SwineforditeLi(Al,Li,Mg)3((Si,Al)4O10)2(OH,F)4 · nH2OMon. 2/m : B2/m
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon. 2/m : B2/m
9.EC.45ZincsiliteZn3Si4O10(OH)2 · 4H2O (?)Mon.
9.EC.45HanjiangiteBa2CaV3+Al(H2AlSi3O12)(CO3)2FMon. 2 : B2
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.50VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
9.EC.52'Tarasovite'near NaKAl11Si13O40(OH)9 · 3H2O
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Borocookeite(LiAl4◻)[BSi3O10](OH)8Mon. m : Bb
9.EC.55FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2
9.EC.55PennantiteMn2+5Al(AlSi3O10)(OH)8Tric.
9.EC.55VakhrushevaiteMg5Cr(AlSi3O10)(OH)8Tric. 1
9.EC.55NimiteNi5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Cookeite(LiAl4◻)[AlSi3O10](OH)8Mon. 2/m
9.EC.55GonyeriteMn2+5Fe3+(Fe3+Si3O10)(OH)8Orth.
9.EC.55ChamositeFe2+5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55'Orthochamosite'(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55BaileychloreZn5Al(AlSi3O10)(OH)8Tric. 1
9.EC.55SudoiteMg2Al3(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8Tric. 1 : P1
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8Mon. 2 : B2
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2OMon.
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)Mon.
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2OMon. 2/m : B2/m
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon. 2/m : B2/m
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2OMon.
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2Mon.
9.EC.70BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6Trig. 3m(32/m) : P31m
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2OMon.
9.EC.75Ferrisurite(Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2OMon.
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2Mon. 2 : P21
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8Mon.

Other InformationHide

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Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for RectoriteHide

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References for RectoriteHide

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Reference List:

Localities for RectoriteHide

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Showing 55 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed.
👁 Image
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species.
👁 Image
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
  • Victoria
    • Mansfield Shire
      • A1 Mining Settlement
Bussat (1980)
      • Gaffney's Creek
Bussat (1980)
      • Woods Point
Bussat (1980)
Bussat (1980)
Austria
  • Salzburg
    • Salzburg-Umgebung District
      • Nußdorf am Haunsberg
Exel (1993)
Brazil
  • Bahia
    • Boquira
Cassedanne et al. (1975)
Canada
  • Newfoundland and Labrador
    • Newfoundland
      • St. Lawrence
Norman Wilson collection
China
  • Guangxi
    • Baise
Naixian Zhang et al. (1996)
  • Guizhou
    • Bijie
      • Dafang County
Lin Yang (1991)
  • Hubei
    • Jingmen
Rongying Zhang et al. (1987)
Colombia
Cyprus
  • Nicosia District
    • Skouriotissa
Adamides (2010)
Finland
  • South Ostrobothnia
    • Alajärvi
Kinnunen
France
  • Auvergne-Rhône-Alpes
    • Isère
      • Grenoble
ClayMin 32:89 (1997)
Hungary
  • Borsod-Abaúj-Zemplén County
    • Szerencs District
      • Mád
Koch (1985)
Japan
  • Aomori Prefecture
    • Kamikita District
INOUE et al. (1991)
  • Hokkaidō Prefecture
    • Iburi Subprefecture
      • Noboribetsu City
INOUE et al. (2017)
  • Kagoshima Prefecture
Kawano et al. (1989) +1 other reference
  • Nagano Prefecture
Clays and Clay Minerals 45:773 (1997)
New Zealand
  • Waikato Region
    • Hauraki District
      • Waihi
Singh (2015)
Nigeria
  • Ondo
    • Akoko North East
Ademila et al. (2017)
Russia
  • Khanty-Mansi Autonomous Okrug
    • Berezovo district
      • Saranpaul
Burlakov (1995)
  • Sverdlovsk Oblast
tv-cv1m illites from galkinskoe massive sulfide deposit (russia) +2 other references
  • Ural Mountains
Slovakia
  • Banská Bystrica Region
    • Banská Štiavnica District
      • Banská Štiavnica
Pauliš
South Africa
  • Free State
    • Lejweleputswa District Municipality
      • Matjhabeng Local Municipality
        • Welkom
Atanasova et al. (2016)
Cairncross et al. (1995)
Spain
  • Castile-La Mancha
    • Ciudad Real
      • Almadén
        • Almadén Mine
Higueras et al. (1999)
Switzerland
  • Grisons
    • Albula Region
      • Vaz/Obervaz
        • Solis
Hofmann et al. (2014)
  • Valais
    • Goms
      • Binn
        • Fäld
[var: Rectorite-K] XRD Analyses by N. Meisser +1 other reference
UK
  • Scotland
    • Highland
      • Eilean á Chèo
        • Isle of Skye
Livingstone (1988)
USA
  • Arizona
    • Cochise County
www.caves.org +2 other references
  • Arkansas
    • Garland County
      • Marble Township
Brackett et al. (1891) +2 other references
Howard (1987) +1 other reference
    • Perry County
      • Hollis
Rocks & Minerals (1988) +1 other reference
      • Nimrod
        • Deckard Mountain
Rocks & Minerals (1988) +1 other reference
    • Pulaski County
      • Jeffrey
Miser et al. (in coop. with the U.S.G.S.) +2 other references
      • Maumelle
Rocks & Minerals (1988)
    • Saline County
      • Bland
Wilson (1986)
      • Paron
Rocks & Minerals (1988)
Smith (1997)
Rocks & Minerals (1988)
  • California
    • El Dorado County
      • Salmon Falls Mining District (Flagstaff Hill area)
        • Flagstaff Hill
...
  • Colorado
    • Lake County
      • Alicante
        • Buckeye Gulch
Eckel et al. (1997)
    • San Juan County
Eckel et al. (1997)
  • Montana
    • Flathead County
      • Hog Heaven Mining District (Flathead Mining District)
        • Kofford Ridge
Cossaboom (1981) +1 other reference
    • Jefferson County
      • Whitehall Mining District (Cardwell Mining District)
Gnanou (2018)
        • Golden Sunlight Mine
Gnanou (2018)
  • Tennessee
    • Grainger County
      • Copper Ridge Zinc Mining District
Paris (2011)
    • Smith County
      • Carthage
Paris (2011)
  • Utah
    • Tooele County
Bullock (1981)
      • Stansbury Mountains
Bullock (1981)
    • Utah County
      • Beverly Hills
Bullock (1981)
Bullock (1981) +2 other references
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