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Cowlesite

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Formula:
CaAl2Si3O10 · 6H2O
System:
Orthorhombic
Colour:
Colourless, White
Hardness:
5 - 5½
Member of:
Zeolite Group.

Unlike other zeolites, cowlesite has a very limited compositional range (Vezzalini et al., 1992).

Classification of Cowlesite

Approved
9.GG.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
G : Unclassified zeolites
77.1.5.8

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
16.9.28

16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca
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http://www.mindat.org/min-1145.html
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Type Occurrence of Cowlesite

Year of Discovery:
1975

Physical Properties of Cowlesite

Vitreous, Greasy
Colour:
Colourless, White
Streak:
White
Hardness (Mohs):
5 - 5½

Crystallography of Cowlesite

Crystal System:
Orthorhombic
Cell Parameters:
a = 11.27Å, b = 15.25Å, c = 12.61Å
Ratio:
a:b:c = 0.739 : 1 : 0.827
Unit Cell Volume:
V 2,167.25 ų (Calculated from Unit Cell)
Comment:
A doubled cell with a 23.3, b 30.6, c 25.0 A is also reported (Vezzalini et al., 1992).

Optical Data of Cowlesite

Type:
Biaxial (-)
RI values:
nα = 1.505 - 1.513 nβ = 1.509 - 1.516 nγ = 1.509 - 1.518
Max Birefringence:
δ = 0.004 - 0.005
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of Cowlesite

Formula:
CaAl2Si3O10 · 6H2O
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Na,K

Relationship of Cowlesite to other Species

Member of:
Other Members of Group:
AlflarseniteNaCa2Be3Si4O13(OH) · 2H2O
AmiciteK2Na2Al4Si4O16 · 5H2O
Ammonioleucite(NH4,K)(AlSi2O6)
AnalcimeNa2(Al2Si4O12) · 2H2O
Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2O
Beaumontite (of Lévy)
Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O
BikitaiteLiAlSi2O6 · H2O
BoggsiteCa8Na3(Si,Al)96O192 · 70H2O
Brewsterite
Brewsterite-Ba(Ba,Sr)[Al2Si6O16] · 5H2O
Brewsterite-Sr(Sr,Ba,Ca)[Al2Si6O16] · 5H2O
Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Chabazite-Levyne Subgroup
Chabazite-Mg(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O
Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Chabazite-SrSr2[Al2Si4O12]2 · 12H2O
ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2O
Clinoptilolite-Ca(Ca,Na,K)2-3Al3(Al,Si)2Si13O36 · 12H2O
Clinoptilolite-K(K,Na,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
Clinoptilolite-Na(Na,K,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2O
Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2O
DirenzoiteNaK6MgCa2(Al13Si47O120) · 36H2O
EdingtoniteBa[Al2Si3O10] · 4H2O
EpistilbiteCaAl2Si6O16 · 5H2O
Erionite-Ca(Ca,K2,Na2)2[Al4Si14O36] · 15H2O
Erionite-K(K2,Ca,Na2)2[Al4Si14O36] · 15H2O
Erionite-Na(Na2,K2,Ca)2[Al4Si14O36] · 15H2O
Faujasite Subgroup
Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O
Faujasite-Mg(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O
Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O
Ferrierite
Ferrierite-K(K2,Na2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
Ferrierite-Mg(Mg,Na2,K2,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
Ferrierite-Na(Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
FerrochiavenniteCa1-2Fe[(Si,Al,Be)5Be2O13(OH)2]•2H2O
Flörkeite(K3Ca2Na)[Al8Si8O32] · 12H2O
GarroniteNa2Ca5Al12Si20O64 · 27H2O
GaultiteNa4Zn2Si7O18 · 5H2O
Gismondine
Gismondine-BaBa2Al4Si4O16 · 4-6H2O
Gismondine-CaCaAl2Si2O8 · 4H2O
Gmelinite
Gmelinite-Ca(Ca,Na2)[Al2Si4O12] · 6H2O
Gmelinite-K(K2,Na2,Ca)[Al2Si4O12] · 6H2O
Gmelinite-Na(Na2,Ca)[Al2Si4O12] · 6H2O
GobbinsiteNa4(Ca,Mg,K2)Al6Si10O32 · 12H2O
Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
GoosecreekiteCa[Al2Si6O16] · 5H2O
GottardiiteNa3Mg3Ca5Al19Si117O272 · 93H2O
Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Heulandite-Ba(Ba,Ca,K,Na,Sr)5Al9Si27O72 · 22H2O
Heulandite-Ca(Ca,Na)2-3Al3(Al,Si)2Si13O36 · 12H2O
Heulandite-K(K,Na,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
Heulandite-Na(Na,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
Heulandite-Sr(Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
HsianghualiteCa3Li2(Be3Si3O12)F2
KirchhoffiteCs(BSi2O6)
LaumontiteCaAl2Si4O12 · 4H2O
LeuciteK(AlSi2O6)
Lévyne
Lévyne-Ca(Ca,Na2,K2)[Al2Si4O12] · 6H2O
Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2O
LovdariteK2Na6Be4Si14O36•9H2O
MaricopaitePb7Ca2(Si,Al)48O100 · 32H2O
Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Mazzite-NaNa8[Al4Si14O36]2 · 30H2O
Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
MesoliteNa2Ca2Si9Al6O30 · 8H2O
Montesommaite(K,Na)9Al9Si23O64 · 10H2O
Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2O
MutinaiteNa3Ca4Si85Al11O192 · 60H2O
NabesiteNa2BeSi4O10 · 4H2O
NatroliteNa2Al2Si3O10 · 2H2O
Natrolite Subgroup
OffretiteKCaMgAl5Si13O36 · 16H2O or near
PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2O
ParanatroliteNa2Al2Si3O10 · 3H2O
ParthéiteCaAl2Si2O8 · 2H2O
Paulingite
Paulingite-Ca(Ca,K2,Na2,Ba)5[Al10Si35O90] · 45H2O
Paulingite-K(K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O
Paulingite-Na(Na2,K2,Ca,Ba)5[Al10Si35O90] · 45H2O
PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2O
Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32 . 12H2O
Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
RoggianiteCa2Be(OH)2Al2Si4O13 · 2.5H2O
ScoleciteCaAl2Si3O10 · 3H2O
StelleriteCa4(Si28Al8)O72 · 28H2O
Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Stilbite-Na(Na,Ca,K)6-7[Al8Si28O72] · nH2O
Terranovaite(Na,Ca)8(Si68Al12)O160 · 29H2O
Tetranatrolite
Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Thomsonite-SrNa(Sr,Ca)2[Al5Si5O20] · 7H2O
Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
TschörtneriteCa4(Ca,Sr,K,Ba)3Cu3[(OH)2|Al3Si3O12]4 · nH2O
WairakiteCa(Al2Si4O12) · 2H2O
WeinebeneiteCaBe3(PO4)2(OH)2 · 4H2O
Wenkite(Ba,K)4(Ca,Na)6[(SO4)3|(Si,Al)20O39(OH)2] · 0.5H2O
WillhendersoniteKCa[Al3Si3O12] · 5H2O
YugawaraliteCaAl2Si6O16 · 4H2O
16.9.1GehleniteCa2Al(AlSiO7)
16.9.2AnorthiteCaAl2Si2O8
16.9.3Yoshiokaite(Ca,Na)[Al(Al,Si)O4]
16.9.4SvyatoslaviteCaAl2Si2O8
16.9.5DmisteinbergiteCaAl2Si2O8
16.9.6GrossularCa3Al2(SiO4)3
16.9.7VuagnatiteCaAl(SiO4)(OH)
16.9.8Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
16.9.9Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
16.9.10PrehniteCa2Al2Si3O10(OH)2
16.9.11KamaishiliteCa2(Al2SiO6)(OH)2
16.9.12BicchuliteCa2(Al2SiO6)(OH)2
16.9.13MargariteCaAl2(Al2Si2O10)(OH)2
16.9.14ChantaliteCaAl2(SiO4)(OH)4
16.9.15CebolliteCa5Al2(SiO4)3(OH)4
16.9.17KatoiteCa3Al2(SiO4)3-x(OH)4x
16.9.18LawsoniteCaAl2(Si2O7)(OH)2 · H2O
16.9.19ParthéiteCaAl2Si2O8 · 2H2O
16.9.20WairakiteCa(Al2Si4O12) · 2H2O
16.9.21VertumniteCa4Al4Si4O6(OH)24 · 3H2O
16.9.22ScoleciteCaAl2Si3O10 · 3H2O
16.9.23LaumontiteCaAl2Si4O12 · 4H2O
16.9.24YugawaraliteCaAl2Si6O16 · 4H2O
16.9.25Gismondine-CaCaAl2Si2O8 · 4H2O
16.9.26EpistilbiteCaAl2Si6O16 · 5H2O
16.9.27GoosecreekiteCa[Al2Si6O16] · 5H2O
16.9.30StelleriteCa4(Si28Al8)O72 · 28H2O
16.9.31SträtlingiteCa2Al2SiO7 · 8H2O
16.9.32AmstalliteCaAl(Si,Al)4O8(OH)4 · (H2O,Cl)

Other Names for Cowlesite

Name in Other Languages:
German:Cowlesit
Spanish:Cowlesita

Other Information

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

References for Cowlesite

Reference List:
Wise, W.S. & R.W. Tschernich (1975): Cowlesite, a new Ca-zeolite: American Mineralogist 60, 951-956.

Nawaz, R. (1984): New data on cowlesite from Northern Ireland, Mineralogical Magazine, 48, 565-566.

Vezzalini, G., Artioli, G., Quartieri, S., Foy, H. (1992): The crystal chemistry of cowlesite, Mineralogical Magazine, 56, 575-579.

Internet Links for Cowlesite

Localities for Cowlesite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Antarctica
 
  • Eastern Antarctica
    • Victoria Land
AmMin 82:423; Galli E, Quartieri S, Vezzalini G, Alberti A (1996) Gottardiite, a new high-silica zeolite from Antarctica: the natural counterpart of synthetic NU-87, European Journal of Mineralogy 8, 687-693
Australia
 
  • New South Wales
    • Gloucester Co.
      • Barrington Tops
        • Barrington
Graham, I. T., Pogson, R. E. and Colchester, D. (2002): Cowlesite and associated minerals from the Barrington Tops area, New South Wales. Australian J. Mineral. 8, 3-8.
  • Victoria
    • Baw Baw Shire
      • Jindivick
Tschernich, R. (1992): Zeolites of the World, p.49; Haupt,J. (1989) Chapter 4: South Gippsland,59-65 in: Birch, W.D. (Ed.) Zeolites of Victoria,101 pp, Melbourne, 1989
    • Flinders area
Tschernich, R. (1992): Zeolites of the World, p.49
Austria
 
  • Lower Austria
    • Waldviertel
      • Mühldorf
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
Canada
 
  • British Columbia
    • Kamloops Mining Division
Tschernich, R. (1992): Zeolites of the World, p.124
Tschernich, R. (1992): Zeolites of the World, p.51,99,124
      • Westwold
Tschernich, R. (1992): Zeolites of the World, p.98,124
  • Ontario
    • Hastings Co.
      • Dungannon Township
Tschernich, R. (1992): Zeolites of the World, p.51,100,124
  • Québec
    • Laurentides
      • Argenteuil RCM
        • Wentworth
          • Laurel
Van Velthuizen et al. (2006) Mineral. Record 37, 283 [locality 48]; Tschernich, R. (1992): Zeolites of the World, p.52,124
Costa Rica
 
  • Guanacaste Province
Micro Probe Vol 7 No. 7 Spring 1993
Micro Probe Vol. 7 No. 7 Spring 1993
  • San José Province
    • Bajo Chacones
Micro Probe Volume VII Number 7 Spring 1993
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Mladá Boleslav
        • Bela pod Bezdezem
Ing. O. Janeček - New localities of Offretite and Cowlesite
    • Liberec Region
      • Česká Lípa (Böhmisch Leipa)
L.Hrůzek,O.Janeček-Personal reference
    • Ústí Region
      • Děčín (Tetschen)
        • Česká Kamenice
Levyn a další zeolity z Hackenbergu u České Kamenice
L.Hrůzek,O.Janeček-Zapomenutá zeolitpvá lokalita Eschlers Bergl u Kunratic u České Kamenice,mag.Minerál 2013/6; L.Hrůzek,O.Janeček,P.Fuchs-Zapomenutá zeolitová lokalita Eschlers Bergl u Kunratic u České Kamenice.mag.Minerál 2013/6
O.Janeček,L.Hrůzek-Personal reference
L.Hrůzek,O.Janeček-Nová lokalita zeolitů Rollberg u Kunratic u Č.Kamenice,mag.Minerál 2013/6; L.Hrůzek,O.Janeček(2013)Nová lokalita zeolitů Rollberg u Kunratic u České Kamenice.mag.Minerál 2013/6
Petr Fuchs 2007
      • Ústí nad Labem (Aussig)
Rychlý, R., Langrová, A., Had, J.: Chemicstry of cowlesite from Zezice, Bohemia. Scripta Fac. Sci. Nat. Univ. Masaryk. Brun, Geol., 1996, vol. 26, p. 43 - 44.
Denmark
 
  • Faroe Islands
    • Sandoy Island
Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona.(p. 124,301)
    • Streymoy Island
Betz, V. (1981): Famous mineral localities: Zeolites from Iceland and the Faeroes. Mineralogical Record 12 (1), 5-26.; Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona, p.124
Hungary
 
  • Pest Co.
    • Pilis Mts
      • Pilisszentlászló
GEODA 2005/3; Szakáll, S., Fehér, B. & Vezzalini, G. (2006): Occurrence of cowlesite in andesite at Pilisszentlászló, Pilis Mts., Hungary. Acta Mineralogica-Petrographica, Abstract Series, 5, p. 113.
Iceland
 
  • Capital Region
Selbekk, R. S. & Mattsson, H. (2004): Zeolitt mineraliseringer i Hvalfjördur, Island. STEIN 31 (1), 28-33
Multi-stage zeolite facies mineralization in the Hvalfjo¨rdur area,
  • Northeastern Region
    • Eyjafjarðarsýsla
      • Dalvík
Zeolite collection of Volker Betz
  • Western Region
    • Mýrasýsla
      • Norðurárdalur
        • Hvammur
Betz, V. (1981): Famous mineral localities: Zeolites from Iceland and the Faeroes. Mineralogical Record 12 (1), 5-26
  • Westfjords
    • Strandasýsla
      • Kollafjörður
Zeolite collection of Volker Betz
Italy
 
  • Sardinia
    • Oristano Province
Bortolozzi, G., Ciriotti, M. E., Galli, E., & Bonacina, E. (2007). Carlhintzeite e cowlesite della Sardegna: primi ritrovamenti italiani. Micro (UK report), 1/2007, 33-38.
    • Sassari Province
      • Anglona
- Bortolozzi, G., Ciriotti, M. E., Galli, E., Bonacina, E. (2007): Carlhintzeite e cowlesite della Sardegna: primi ritrovamenti italiani. Micro (UK report), 1/2007, 33-3
Japan
 
  • Chugoku Region
    • Shimane Prefecture
      • Oki Islands
        • Nishinoshima
Matsubara, S. et al (1978) Bulletin of the National Science Museum (Tokyo), 4, 33-36.
  • Kyushu Region
    • Nagasaki Prefecture
      • Hirado City
Fujimoto et al. (1990) Chigaku Kenkyu, 39, 219-224.
      • Iki Island
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
New Zealand
 
  • North Island
    • Northland
      • Kaipara
        • Aranga
Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
Collection of Rod Martin
NZ Zeolite list and locations. Neville Berkahn, New Zealand Micromounters Group, December 2006.
  • South Island
    • Canterbury
      • Lyttelton
Thornton, J. (Ed.), The Micro-Scope, No. 26, July 1998
    • Marlborough
J. Thornton. Zeolites and other minerals on Middlehurst Station. Essence of Microscope (NZ)
Essence of Micro-Scope, Lookout volcanics, Mt Lookout and Upcot Stations. 2009
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
www.koeln.netsurf.de/~w.steffens/lovo.htm
Spain
 
  • Canary Islands
    • Las Palmas Province
      • Lanzarote
        • Yaiza
          • Playa Blanca
Kratzsch E. (2001) Mineralfundstellen auf Lanzarote, Kanarische Inseln; Lapis 2001, 3, 13-23 (reference via Ferdinando Giovine)
UK
 
  • Northern Ireland
    • Co. Antrim
      • Antrim
Trevor Boyd collection
      • Ballyclare
Trevor Boyd collection
Wilson O., Dyer A., Enamy H. (2003): Zeolites of the British Isles. British Micromount Society, Occasional Paper, 15; BMS Collection; MINERALOGICAL MAGAZINE, DECEMBER 1984, VOL. 48, PP. 565 6
      • Giant's Causeway
http://rruff.geo.arizona.edu/doclib/hom/cowlesite.pdf.; MINERALOGICAL MAGAZINE, DECEMBER 1984, VOL. 48, PP. 565-6
      • Glenarm
Trevor Boyd (Ferdinando Giovine collection)
      • Island Magee
        • Gobbins
http://www.habitas.org.uk/escr/summary.asp?item=527
      • Larne
Foy, H. (1994). Gobbinsite from Magheramorne Quarry, Northern Ireland. Mineralogical Magazine, 58, 615-620.
Trevor Boyd Collection
      • Portrush
Zeolite colletion of Volker Betz
      • Waterfoot
Trevor Boyd Collection; Trevor Boyd Collection
  • Scotland
    • North West Highlands
      • Isle of Skye
        • Duirinish
          • Dunvegan
[UKJMM 16:21-27]
No reference listed
        • Trotternish
          • Loch Snizort
            • Kingsburgh
BMS Database
USA (TL)
 
  • Arizona
    • Pinal Co.
      • Superior District
        • Superior area
          • adjacent to State Route 177
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 109, 160, 191, 230, 305, 395; Wise, W.S. & R.W. Tschernich (1975), Cowlesite, a new Ca-zeolite, Am.Min.: 60: 951-956.
  • Colorado
    • Jefferson Co.
      • Golden District
        • Golden
Rocks & Minerals 79:4
MinRec 19:153
  • Idaho
    • Adams Co.
R&M 70:4 pp 242-263
    • Idaho Co.
      • Skookumchuck Creek
Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
  • Oregon
    • Columbia Co.
      • Goble
Amer.Min.(1975) 60, 951-956; Micro Probe Vol. 6 No. 5 Fall 1987; Tschernich, R. (1992): Zeolites of the World, 117
    • Grant Co.
      • Mount Vernon
Micro Probe Volume VI Number 4
      • North Fork John Day River
Tschernich, R. (1992): Zeolites of the World, 118
      • Ritter
Micro Probe Volume VII Number 8 Fall 1993
Micro Probe Volume VII Number 8 Fall 1993
    • Jackson Co.
      • Lost Creek Reservoir
K. Starnes, personal ID, 1986
    • Lake Co.
Micro Probe Vol. 7 No. 9 Spring 1994; Tschernich, R. (1992): Zeolites of the World, 118
    • Wallowa Co.
      • Joseph
        • Aneroid Lake
Micro Probe Volume VI Number 4
    • Wheeler Co.
      • Spray
Micro Probe Vol. 6 No. 4; Tschernich, R. (1992): Zeolites of the World, 118
Micro Probe VolumeVII Number 3 Spring 1996
  • Washington
    • Clark Co.
      • Yacolt
Micro Probe Volume VI Number 4
    • Cowlitz Co.
      • Wolf Point
Micro Probe Vol. 7 No. 10
    • Grays Harbor Co.
      • Porter
Micro Probe Vol. 7 No. 5 Spring '92
    • Thurston Co.
      • Olympia
Zeolites of the World, Rudy W. Tschernich 1992
Mineral and/or Locality  
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