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Epistilbite

A valid IMA mineral species - grandfathered
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About EpistilbiteHide

Formula:
CaAl2Si6O16 · 5H2O
Colour:
Colorless, white, pinkish, yellowish
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
2.22 - 2.28
Crystal System:
Monoclinic
Member of:
Name:
From the Greek 'epi' for 'near' and the similar mineral stilbite. Although there are characteristics shared with stilbite, and both are zeolites, epistilbite is a completely distinct mineral.
Dimorph of:

Unique IdentifiersHide

Mindat ID:
1391
Long-form identifier:
mindat:1:1:1391:4

IMA Classification of EpistilbiteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Ca3(Si18Al6)O48·16H2O
First published:
1826

Classification of EpistilbiteHide

9.GD.45

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites
77.1.6.2

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
16.9.26

16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca

Mineral SymbolsHide

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

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

Physical Properties of EpistilbiteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless, white, pinkish, yellowish
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {010}
Fracture:
Irregular/Uneven
Density:
2.22 - 2.28 g/cm3 (Measured)    2.266 g/cm3 (Calculated)

Optical Data of EpistilbiteHide

Type:
Biaxial (-)
RI values:
nα = 1.502 nβ = 1.51 nγ = 1.512
2V:
Measured: 44° , Calculated: 52°
Max. Birefringence:
δ = 0.010
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Surface Relief:
Low (negative)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure - the conoscopic view for a grain cut perpendicular to the acute bisectrix, using this mineral's 2V. The two small white dots mark the melatopes - the points where the two optic axes emerge - and are shown only when they fall within the field of view. The coloured bands are isochromatics, and the dark bands are isogyres.

Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
r < v strong
Optical Extinction:
Y = b; Z ∧ c ≃ -10°; X ∧ a = 11°.

Chemistry of EpistilbiteHide

Mindat Formula:
CaAl2Si6O16 · 5H2O
Element Weights:
Element% weight
O55.205 %
Si27.688 %
Al8.867 %
Ca6.585 %
H1.656 %

Calculated from ideal end-member formula.
O
Si
Al
Ca
H
Common Impurities:
Fe,Mg,Na,K

Crystallography of EpistilbiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 9.08 Å, b = 17.74 Å, c = 10.25 Å
β = 124.5°
Ratio:
a:b:c = 0.512 : 1 : 0.578
Unit Cell V:
1,360.68 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Crystals prismatic; spherulitic, sheaflike aggregates
Twinning:
Always on {100}, {110} penetration crosses
Comment:
Point Group: 2/m; m; or 2:; Space Group: C2/m; Cm; or C2:

Crystallographic forms of EpistilbiteHide

Crystal Atlas:
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Epistilbite no.1 - {100} - Goldschmidt (1913-1926)
View 3D crystal model
Epistilbite no.3 - {110} - Goldschmidt (1913-1926)
View 3D crystal model
Epistilbite no.11 - {100} - Goldschmidt (1913-1926)
View 3D crystal model
Epistilbite no.12 - {110} - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006621EpistilbiteYang P, Armbruster T (1996) (010) disorder, partial Si,Al ordering, and Ca distribution in triclinic (C1) epistilbite European Journal of Mineralogy 8 263-2711996Gibelsbach, Fiesch (Valais, Switzerland)0293
0014448EpistilbitePerrotta A J (1967) The crystal structure of epistilbite Mineralogical Magazine 36 480-4901967Teigarhorn, Iceland0293
0006967EpistilbiteCruciani G, Martucci A, Meneghini C (2003) Dehydration dynamics of epistilbite by in situ time resolved synchrotron powder diffraction European Journal of Mineralogy 15 257-26620030323
0006968EpistilbiteCruciani G, Martucci A, Meneghini C (2003) Dehydration dynamics of epistilbite by in situ time resolved synchrotron powder diffraction European Journal of Mineralogy 15 257-26620030429
0006969EpistilbiteCruciani G, Martucci A, Meneghini C (2003) Dehydration dynamics of epistilbite by in situ time resolved synchrotron powder diffraction European Journal of Mineralogy 15 257-26620030528
0006970EpistilbiteCruciani G, Martucci A, Meneghini C (2003) Dehydration dynamics of epistilbite by in situ time resolved synchrotron powder diffraction European Journal of Mineralogy 15 257-26620030666
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.45 Å(100)
8.89 Å(90)
3.21 Å(90)
3.87 Å(70)
4.91 Å(65)
6.89 Å(60)
2.917 Å(60)
Comments:
ICDD 19-213

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
10 : Basalt-hosted zeolite minerals
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)
Geological Setting:
Cavities in basalts and gneisses

Type Occurrence of EpistilbiteHide

Synonyms of EpistilbiteHide

Other Language Names for EpistilbiteHide

Relationship of Epistilbite to other SpeciesHide

Member of:
Other Members of Zeolite Group:
AlflarseniteNaCa2Be3Si4O13(OH) · 2H2OMon. 2 : P21
AmiciteK2Na2Al4Si4O16 · 5H2OMon. 2
Ammonioleucite(NH4)(AlSi2O6)Tet. 4/m : I41/a
AnalcimeNa(AlSi2O6) · H2OTric. 1 : P1
ArzamastseviteK6Al5Si6O20(OH)4ClTet. 42m : I42m
Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2OHex.
BikitaiteLiAlSi2O6 · H2OTric. 1 : P1
BoggsiteCa8Na3(Si,Al)96O192 · 70H2OOrth. mmm(2/m2/m2/m) : Imma
Brewsterite SubgroupZeolite Group.
Chabazite-Levyne SubgroupM[Al2Si4O12] · 6H2O
ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2OMon. 2/m : P21/b
Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
CowlesiteCaAl2Si3O10 · 6H2OOrth. mmm(2/m2/m2/m)
Dachiardite SubgroupZeolite Group.
DirenzoiteNaK6MgCa2(Al13Si47O120) · 36H2OOrth. mmm(2/m2/m2/m) : Pmmn
EdingtoniteBa[Al2Si3O10] · 4H2OOrth. 222 : P212121
Erionite SubgroupM2[Al4Si14O36] · 15H2O
FabrièsiteNa3Al3Si3O12 · 2H2OOrth. mm2 : Pmm2
Faujasite SubgroupM3.5[Al7Si17O48] · 32H2O
Ferrierite SubgroupName used for unanalysed specimens that could be either ferrierite-K, ferrierite-Mg, ...
FerrochiavenniteCa1-2Fe[(Si,Al,Be)5Be2O13(OH)2] · 2H2OMon. 2/m : P21/b
Flörkeite(K3Ca2Na)[Al8Si8O32] · 12H2OTric. 1 : P1
Garronite Subgroup
GaultiteNa4Zn2Si7O18 · 5H2OOrth. mm2 : Fdd2
Gismondine SubgroupZeolite Group.
Gmelinite SubgroupIn 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K.
GobbinsiteNa5(Si11Al5)O32 · 11H2OOrth. mmm(2/m2/m2/m) : Pnma
GoosecreekiteCa[Al2Si6O16] · 5H2OMon. 2 : P21
GottardiiteNa3Mg3Ca5Al19Si117O272 · 93H2OOrth. mmm(2/m2/m2/m) : Cmca
Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
HsianghualiteCa3Li2(Be3Si3O12)F2Iso. 23 : I213
KalborsiteK6Al4BSi6O20(OH)4ClTet. 42m : P421c
KirchhoffiteCs(BSi2O6)Tet. 4/mmm(4/m2/m2/m) : I41/acd
LaumontiteCaAl2Si4O12 · 4H2OMon. 2/m : B2/m
LeuciteK(AlSi2O6)Tet. 4/m : I41/a
LimousiniteBaCa[Be4P4O16] · 6H2OMon. 2/m : P21/b
LithositeK6Al4Si8O25 · 2H2OMon.
Loomisite Ba[Be2P2O8] · H2OMon. m
LovdariteK2Na6Be4Si14O36 · 9H2OOrth. mm2
MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
MartinandresiteBa2(Al4Si12O32) · 10H2OOrth. mmm(2/m2/m2/m) : Pmmn
Mazzite SubgroupZeolite Group.
MeieriteBa44Si66Al30O192Cl25(OH)33Iso. m3m(4/m32/m) : Im3m
MerlinoiteK5Ca2(Si23Al9)O64 · 24H2OOrth. mmm(2/m2/m2/m) : Immm
Montesommaite(K,Na)9Al9Si23O64 · 10H2OOrth. mm2 : Fdd2
Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2OOrth.
MountainiteKNa2Ca2[Si8O19(OH)] · 6H2OMon. 2/m : P2/b
MutinaiteNa3Ca4Si85Al11O192 · 60H2OOrth. mmm(2/m2/m2/m) : Pnma
NabesiteNa2BeSi4O10 · 4H2OOrth. 222 : P212121
Natrolite SubgroupA subgroup of the Zeolite Group.
OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6m2 : P6m2
PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2OIso. 23 : I23
ParthéiteCa2(Si4Al4) O15 (OH)2 · 4H2OMon. 2/m : B2/b
Paulingite SubgroupPaulingite was originally described in 1960.
PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2OHex. 6/mmm(6/m2/m2/m) : P6/mmm
Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Pollucite(Cs,Na)2(Al2Si4O12) · 2H2OIso. m3m(4/m32/m) : Ia3d
RoggianiteCa2Be(OH)2Al2Si4O13 · 2.5H2OTet. 4/mmm(4/m2/m2/m) : I4/mcm
RongibbsitePb2(Si4Al)O11(OH) Mon. 2/m : B2/m
Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Terranovaite(Na,Ca)8(Si68Al12)O160 · 29H2OOrth.
Thomsonite SubgroupThe large majority of "thomsonite" is thomsonite-Ca.
ThornasiteNa12Th4+3(Si8O19)4 · 18H2OTrig. 3m : R3m
Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2OTet. 4/mmm(4/m2/m2/m) : P4/mmm
TschörtneriteCa4(Ca,Sr,K,Ba)3Cu3[Al3Si3O12]4(OH)8 · nH2OIso. m3m(4/m32/m) : Fm3m
'UM1996-38-SiO:AlCaHNa'Na-Ca-Al-Si-O-H
'UM1999-33-SiO:AlHKNa'K7Na5Al12Si20O64 · 24H2O
'UM2002-40-SiO:AlCaHKMgNa'(Mg,Ca,Na,K)7.5(Al12.8Si51.2)O128 · 65H2OTet. 422 : P4122
'Unnamed (Ca analogue of Merlinoite)'(Ca,K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O ?
WairakiteCa(Al2Si4O12) · 2H2OMon. 2/m : B2/m
WeinebeneiteCaBe3(PO4)2(OH)2 · 4H2OMon. m : Bb
Wenkite(Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2OHex. 6m2 : P62m
Wilancookite(Ba5Li2◻)Ba6Be24P24O96 · 26H2OIso. 23 : I23
WillhendersoniteKCa[Al3Si3O12] · 5H2OTric. 1 : P1
YugawaraliteCaAl2Si6O16 · 4H2OMon. m : Pb

Common AssociatesHide

Associations Based on Photo Data:
55 photos of Epistilbite associated with QuartzSiO2
26 photos of Epistilbite associated with Chabazite
22 photos of Epistilbite associated with CalciteCaCO3
21 photos of Epistilbite associated with Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
19 photos of Epistilbite associated with Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
13 photos of Epistilbite associated with Lévyne
11 photos of Epistilbite associated with 'Chalcedony'SiO2
10 photos of Epistilbite associated with Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
9 photos of Epistilbite associated with Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
9 photos of Epistilbite associated with Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O

Related Minerals - Strunz-mindat GroupingHide

9.GD.05Gmelinite-CaCa2(Si8Al4)O24 · 11H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.05Gmelinite-KK4(Si8Al4O24) · 11H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.05Gmelinite-NaNa4(Si8Al4)O24 · 11H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.10Chabazite-Mg(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24] · 10H2O Trig. 3m(32/m) : R3m
9.GD.10WillhendersoniteKCa[Al3Si3O12] · 5H2OTric. 1 : P1
9.GD.10Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2OTric. 1 : P1
9.GD.10Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2OTrig. 3m(32/m) : R3m
9.GD.10Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2OTrig. 3m : R3m
9.GD.10Chabazite-SrSr2[Al2Si4O12]2 · 12H2OTrig. 3m(32/m) : R3m
9.GD.15Lévyne-Ca(Ca,Na2,K2)[Al2Si4O12] · 6H2OTrig. 3m(32/m) : R3m
9.GD.15Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2OTrig. 3m(32/m) : R3m
9.GD.20Erionite-Ca(Ca,K2,Na2)2[Al4Si14O36] · 15H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.20Erionite-K(K2,Ca,Na2)2[Al4Si14O36] · 15H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.20Erionite-Na(Na2,K2,Ca)2[Al4Si14O36] · 15H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.20Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2OHex.
9.GD.25OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6m2 : P6m2
9.GD.25Wenkite(Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2OHex. 6m2 : P62m
9.GD.30Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m
9.GD.30Faujasite-Mg(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m
9.GD.30Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m
9.GD.35MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
9.GD.35Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2OOrth.
9.GD.40Dachiardite-KK4(Si20Al4O48) · 13H2OMon.
9.GD.40Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2OMon. 2/m : B2/m
9.GD.40Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2OMon. 2/m : B2/m
9.GD.50Ferrierite-K(K,Na)5(Si31Al5)O72 · 18H2OOrth. mmm(2/m2/m2/m) : Immm
9.GD.50Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2OOrth. mmm(2/m2/m2/m) : Pnnm
9.GD.50Ferrierite-Na(Na,K)5(Si31Al5)O72 · 18H2OMon. 2/m
9.GD.50Ferrierite-NH4(NH4,Mg0.5)5(Al5Si31O72) · 22H2OOrth. mmm(2/m2/m2/m) : Immm
9.GD.55BikitaiteLiAlSi2O6 · H2OTric. 1 : P1

Other InformationHide

Electrical:
Piezoelectric
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 EpistilbiteHide

References for EpistilbiteHide

Reference List:

Localities for EpistilbiteHide

Showing 174 localities.

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - 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.
Algeria
 
  • In Guezzam Province
    • In Guezzam District
      • Laouni
Hamis et al. (2021)
Antarctica
 
  • East Antarctica
    • Victoria Land
AmMin 82:423 +1 other reference
  • West Antarctica
    • Antarctic Peninsula
      • South Shetland Islands
        • King George Island
Soto et al. (2014)
Argentina
 
  • Neuquén Province
    • Chos Malal Department
Tschernich (1992)
Australia
 
  • New South Wales
    • Camden County
      • Five Islands Nature Reserve
Chalmers (1941)
  • Tasmania
    • Kingborough municipality
      • Margate
Bottrill et al. (2008)
    • Meander Valley municipality
      • Elizabeth Town
R Bottrill
Austria
 
  • Carinthia
    • Wolfsberg District
      • Lavamünd
        • Sankt Vinzenz
Bojar (1993)
Brazil
 
  • Rio Grande do Sul
    • Estância Velha
Frank (2008)
    • Morro Reuter
Frank et al. (2004)
    • Novo Hamburgo
Ricardo Pimentel collection. Specimen ...
Canada
 
  • British Columbia
    • Kamloops Mining Division
      • Spences Bridge
Tschernich (1992)
  • New Brunswick
    • Charlotte Co.
"Geology of New Brunswick: field guide ...
        • Eel Brook Beach
Sabina (2015)
Sabina (2015)
  • Nova Scotia
    • Annapolis Co.
How (1858) +2 other references
    • Cumberland Co.
      • Parrsboro
Pe-Piper et al. (2002)
    • Kings Co.
The Nova Scotia Mineral Occurrence ... +1 other reference
Tschernich (1992)
Pe-Piper (2000)
Pe-Piper (2000)
  • Ontario
    • Hastings County
      • Town of Bancroft
        • Dungannon Township
Tschernich (1992)
  • Québec
    • Laurentides
      • Les Pays-d'en-Haut RCM
        • Wentworth-Nord
          • Laurel
Tschernich (1992)
China
 
  • Xinjiang
    • Ili Kazakh Autonomous Prefecture
      • Tacheng Prefecture (Tarbaghatay Prefecture)
        • Tuoli Co. (Toli Co.)
          • Baogutu
Fuquan Yang et al. (2010)
Costa Rica
 
  • San José Province
    • Acosta Canton
      • Guaitil District
Micro Probe Volume VII Number 7 Spring ...
Zeledón (2004)
    • Puriscal Canton
      • Candelarita District
Micro Probe Volume VII Number 7 Spring ... +1 other reference
Faroe Islands
 
  • Eysturoy Region
    • Sjóvar Municipality
      • Selatrað
Burvald (2013)
  • Streymoy Region
    • Streymoy
      • Vestmanna
Jørgensen (2006)
France
 
  • French Southern and Antarctic Lands
    • Kerguelen Islands
Giret et al. (1992)
Germany
 
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Windischeschenbach
          • Oberbaumühle
Schwarzmeier et al. (2015) +2 other references
  • Lower Saxony
    • Goslar District
      • Bad Harzburg
        • Radau valley
  • Saxony
    • Erzgebirgskreis
      • Grünhain-Beierfeld
        • Beierfeld
M.E. Ciriotti
Sebastian Möller
Greece
 
  • South Aegean
    • Thira
      • Santorini Island
        • Santorini Caldera
          • Nea Kameni Island
Hungary
 
  • Fejér County
    • Gárdony District
      • Nadap
  • Pest County
    • Szob District
      • Márianosztra
Sándor et al. (2005)
Iceland (TL)
 
  • Eastern Region
[World of Stones 9/96 p.29] +1 other reference
    • Fjarðabyggð
      • Neskaupstaður
Personally collected by Günter Frenz
    • Múlaþing
      • Djúpavogshreppur
        • Berufjörður
Zeolite collection volker Betz
Walker (1960)
Am Min 59 (1974) +2 other references
Zeolite collection of Volker Betz
        • Hamarsfjörður
Zeolite collection of Volker Betz
Weisenberger et al. (2006)
  • Northeastern Region
    • Fjallabyggð
      • Siglufjörður
Personally collected by Günter Frenz
    • Svalbarðsstrandarhreppur
Personally collected by Günter Frenz
  • Western Region
    • Borgarbyggð
      • Hvitarsiða
        • Tunga
Betz (1981)
    • Hvalfjarðarsveit
Knut Edvard Larsen collection # MM-5433 (ex Hermann Fylling) +1 other reference
von Waltershausen (1853) +1 other reference
India
 
  • Maharashtra
    • Amravati Division
      • Akola District
Lapis 29 (7/8)
    • Chhatrapati Sambhajinagar Division (Aurangabad Division)
      • Chhatrapati Sambhajinagar District (Aurangabad District)
Makki - Matrix India Minerals
    • Konkan Division
      • Raigad District
Lapis 29 (7/8)
Ottens et al. (2022)
        • Mumbai Suburban District
          • Malad
Lapis 29 (7/8)
Lapis 29 (7/8)
    • Nashik Division
        • Rahta (Rahata)
Lapis 29 (7/8)
Ottens (1996)
        • Sawade Pr Chandsar
      • Nashik District
        • Dindori
          • Talegaon
Claeys (2009)
        • Nashik
Ottens et al. (2019)
          • Pandulena Hills
Claeys (2009)
        • Sinnar
Lapis 29 (7/8)
Ottens et al. (2019)
    • Pune Division
      • Pune District
        • Lonavala
collection of Petr Gadas
        • Pimpri-Chinchwad
Lavinsky (n.d.)
Iran
 
  • Tehran Province
    • Robat Karim County
Tabbakh Shabani et al. (2019)
Italy
 
  • Aosta Valley
    • Courmayeur
Piccoli et al. (2007)
  • Lombardy
    • Sondrio Province
      • Chiesa in Valmalenco
Marchesini et al. (2025)
      • Grosio
Bedognè et al. (2006)
      • Novate Mezzola
        • Codera Valley
Ghizzoni et al. (2005)
Ghizzoni et al. (2005)
Ghizzoni et al. (2005)
  • Piedmont
    • Biella Province
      • Campiglia Cervo
        • San Paolo Cervo
Martini et al. (2012)
Martini et al. (2012)
    • Verbano-Cusio-Ossola Province
      • Craveggia
        • Rio Vasca
Boscardin M. et al. (2013)
      • Premia
        • Premia gneiss quarries
Piccoli et al. (2007)
Piccoli et al. (2007)
Milanesi D. (1998)
  • Sardinia
    • Metropolitan City of Cagliari
      • Pula
Preite (2003)
Pongiluppi (1974) +1 other reference
    • Nuoro Province
      • Noragugume
Preite (2003)
Preite (2003)
    • Sassari Province
Gelosa et al. (1999)
Preite (2003)
  • Sicily
    • Metropolitan City of Catania
Sturiale (1963)
  • Trentino-Alto Adige/Südtirol
    • Trento Province
      • Canal San Bovo
        • Vanoi Valley
          • Pralongo
Ferretti et al. (2015)
  • Tuscany
    • Livorno Province
      • Campo nell'Elba
        • San Piero in Campo
G. Grattarola (1879) +1 other reference
      • Marciana
Orlandi P. & Pezzotta (1996)
Japan
 
  • Aomori Prefecture
    • Kuroishi City
Onuki et al (1988)
  • Gunma Prefecture
    • Annaka City
Gunma university Academic Information Repository et al. (2000)
  • Kagoshima Prefecture
    • Hishikari gold mine
Ibaraki et al. (1991)
  • Kanagawa Prefecture
    • Ashigarashimo District
      • Yugawara
Sadanaga et al. (1974)
Petrov (n.d.)
Petrov (n.d.)
  • Nagasaki Prefecture
    • Hirado City
Late 19th century Dr. F. Krantz ... +3 other references
  • Niigata Prefecture
    • Jōetsu City
Petrov (n.d.)
  • Shizuoka Prefecture
    • Kamo district
      • Kawazu
Sadanaga et al. (1974)
      • Matsuzaki
- (n.d.)
  • Yamanashi Prefecture
Kato (2009)
Jersey
 
  • St Lawrence
    • Waterworks Valley
Mineralogical Magazine 1982 46 : ...
Jordan
 
  • Irbid Governorate
    • Maqarin area
Khoury et al. (1985)
Middle East
 
Gross (1977)
New Zealand
 
  • Canterbury Region
    • Ashburton District
      • Rangitata Valley
J. Thornton in Micro-Scope
North America
 
182-183. +1 other reference
Norway
 
  • Buskerud
    • Øvre Eiker
      • Gunhildrud
  • Oslo
    • Vestre Aker
Bergstøl (1962) +1 other reference
Poland
 
  • Lower Silesian Voivodeship
    • Kłodzko County
      • Gmina Radków
        • Suszyna
Websky (1867)
Websky M. (1868) +1 other reference
      • Nowa Ruda
        • Piast Mine
Kapuściński (1992)
    • Świdnica County
      • Gmina Strzegom
        • Strzegom
Ivan A. Novikov
Slovakia
 
  • Banská Bystrica Region
    • Lučenec District
Ďuďa
www.mineralienatlas.de (n.d.)
    • Žarnovica District
      • Hodruša-Hámre
Martin Števko-unpublished
  • Prešov Region
    • Prešov District
      • Fintice
Ďuďa
South Africa
 
  • Eastern Cape
Cairncross et al. (1995)
  • North West
    • Ngaka Modiri Molema District Municipality
      • Ramotshere Moiloa Local Municipality
Cairncross et al. (1995)
Spain
 
  • Canary Islands
    • Las Palmas Province
      • Gran Canaria
        • Agaete
          • Risco Faneque
Betz (2009)
Switzerland
 
  • Grisons
    • Maloja Region
      • Bregaglia
        • Upper Val Bregaglia
          • Val Forno
Stalder et al. (1998)
    • Moesa Region
      • Calanca
        • Arvigo
Weiß et al. (1997) +1 other reference
  • Ticino
    • Riviera
Stalder et al. (1998)
  • Valais
    • Goms
      • Fiesch
Stalder et al. (1998)
UK
 
  • England
    • Cumbria
      • Eden
        • Matterdale
Day (1999)
  • Scotland
    • Argyll and Bute
      • Isle of Mull
        • Loch Na Keal
    • Highland
      • Eilean á Chèo
        • Isle of Skye
          • Minginish
            • Carbost
              • Talisker
            • Glen Brittle
Steve Sorrell Collection
          • Sligachan
Ukraine
 
  • Crimea
    • Feodosia area
Tischenko A. data
USA
 
  • Alaska
    • Petersburg Borough
      • Kupreanof Island
June 1997 +3 other references
  • California
    • Colusa County
      • Coast Ranges
Moiseyev (1968) +2 other references
    • Riverside County
      • Jurupa Valley
        • Crestmore
Jenni (1957) +2 other references
      • Lakeview Mountains
        • Nuevo
Murdoch (1966) +3 other references
Mineral News v.14 no.9
    • Ventura County
      • Santa Monica Mountains Conservancy
        • Sandstone Peak
www.mineralsocal.org (2001)
  • Colorado
    • Custer County
      • Silver Cliff Mining District
Eckel et al. (1997)
    • Gunnison County
Eckel et al. (1997)
    • Hinsdale County
Tschernich (1992)
  • Connecticut
    • Fairfield County
Pawloski (1965) +1 other reference
    • Litchfield County
      • Watertown
Januzzi et al. (1976)
Tschernich (1992)
  • Georgia
    • Muscogee County
      • Columbus
Cook (1978)
  • Hawaii
    • Honolulu County
      • Oahu Island
        • Koolau Range (Koolau caldera)
          • Kailua
Fujishima et al. (1977)
White (1984) +1 other reference
Tschernich (1992)
Dunham (1933)
  • Nevada
    • Washoe County
      • Pah Rah Range (Pah Rah Mts)
R&M 79:1 p44-54
  • New Jersey
    • Passaic County
      • Paterson
Mineral Collector 15: 113-118 et al. (1908) +1 other reference
  • New York
Jensen (1978)
      • Bedford
Pough (1936)
  • Oregon
    • Columbia County
      • Goble
Micro Probe Vol. 6 No. 5 Fall 1987 +1 other reference
    • Hood River County
Marshall W. Gannett and Keith E. Bargar +1 other reference
    • Jackson County
      • Lost Creek Reservoir
K. Starnes
    • Josephine County
      • Sailor Diggings Mining District
- (1952)
    • Marion County
      • Santiam Mining District (Elkhorn Mining District)
        • Breitenbush-Austin Hot Springs area
Bargar et al. (1997)
Bargar et al. (1997)
  • Virginia
    • Loudoun County
      • Leesburg
Dietrich (1990)
  • Washington
    • Clark County
Micro Probe Volume VI Number 4
    • Cowlitz County
      • Kalama area
Tschernich (1992) +1 other reference
Tschernich (1992)
Tschernich (1996)
Micro Probe Vol.7 No.9 Spring '94
      • Toutle
        • Elk Mountain
- (n.d.)
        • Signal Peak
- (n.d.)
      • Wolf Point
Micro Probe Vol. 7 No. 10
Micro Probe +1 other reference
    • Kittitas County
      • Swauk Mining District
Cannon (1975) +1 other reference
    • Lewis County
      • Kosmos
Cannon (1975) +1 other reference
    • Skamania County
      • Cook
Gladwell (2022)
      • Lewis River
- (n.d.)
 
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