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Erionite

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Big Photo

Phelps Dodge Corporation Well No. 1, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
© Chinellato Matteo

Show Erionite Photos (81)



Colour:WhiteHardness:3½ - 4
Member of:Zeolite Group
Name:Erionite was first found at the Durkee Fire Opal Mine, Swayze Creek, Durkee, Baker Co., Oregon (Tschernich, 1992). In modern nomenclature, the original erionite was erionite-Na, but potassium was nearly equal to sodium.
Synonym of:Erionite-Ca, Erionite-K, Erionite-Na


This name now refers to a group of related minerals. Erionite minerals have the average chemical formula Ca3K2Na2[Al10Si26O72].30H2O (Z = 1), whereas the closely related offrétite has the average chemical formula CaKMg[Al5Si13O36].16H2O (Z = 1).

NOTE: The zeolite mineral species epitaxially overgrown on lévyne in all cases is identified as erionite (Passaglia et al., 1998).

Health warning: Carcinogenic upon inhalation of its dust, due to its fibrous structure (IARC Monography 42: 225-239, 1987). The population of Cappadocia, Turkey, who live in houses built from erionite-bearing tuff, is reported to suffer from mesothelioma (see also http://en.wikipedia.org/wiki/Erionite ).

Classification of Erionite

Dana 8th edition ID:77.1.2.5

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
Hey's CIM Ref.:16.10.25

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis
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Physical Properties of Erionite

Lustre:Silky
Diaphaneity (Transparency):Transparent, Translucent
Colour:White
Streak:White
Hardness (Mohs):3½ - 4
Tenacity:Flexible

Optical Data of Erionite

Type:Uniaxial (+)
RI values: nω = 1.458 - 1.468 nε = 1.458 - 1.480
Maximum Birefringence:δ = 0.000

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Relationship of Erionite to other Species

Member of:Zeolite Group
Other Members of Group:

- +
Amicite
K
 
2
Na
 
2
Al
 
4
Si
 
4
O
 
16
 · 5H
 
2
O
Ammonioleucite
(NH
 
4
,K)(AlSi
 
2
O
 
6
)
Analcime
Na
 
2
(Al
 
2
Si
 
4
O
 
12
) · 2H
 
2
O
Barrerite
(Na,K,Ca
 
0.5
)
 
2
[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
Bellbergite
(K,Ba,Sr)
 
2
Sr
 
2
Ca
 
2
(Ca,Na)
 
4
[Al
 
3
Si
 
3
O
 
12
]
 
6
 · 30H
 
2
O
Bikitaite
LiAlSi
 
2
O
 
6
 · H
 
2
O
Boggsite
Ca
 
8
Na
 
3
(Si,Al)
 
96
O
 
192
 · 70H
 
2
O
Brewsterite
Brewsterite-Ba
(Ba,Sr)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
Brewsterite-Sr
(Sr,Ba,Ca)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
Chabazite
Chabazite-Ca
(Ca,K
 
2
,Na
 
2
)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
Chabazite-K
(K
 
2
,Ca,Na
 
2
,Sr,Mg)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
Chabazite-Levyne Subgroup
Chabazite-Mg
(Mg
 
0.7
K
 
0.5
Ca
 
0.5
Na
 
0.1
)[Al
 
3
Si
 
9
O
 
24
]·10H
 
2
O
Chabazite-Na
(Na
 
2
,K
 
2
,Ca,Sr,Mg)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
Chabazite-Sr
Sr
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
Chiavennite
CaMnBe
 
2
Si
 
5
O
 
13
(OH)
 
2
 · 2H
 
2
O
Clinoptilolite-Ca
(Ca,Na,K)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Clinoptilolite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Clinoptilolite-Na
(Na,K,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Cowlesite
CaAl
 
2
Si
 
3
O
 
10
 · 6H
 
2
O
Dachiardite-Ca
(Ca,Na
 
2
,K
 
2
)
 
5
Al
 
10
Si
 
38
O
 
96
 · 25H
 
2
O
Dachiardite-Na
(Na
 
2
,Ca,K
 
2
)
 
5
Al
 
10
Si
 
38
O
 
96
 · 25H
 
2
O
Direnzoite
NaK
 
6
MgCa
 
2
(Al
 
13
Si
 
47
O
 
120
) · 36H
 
2
O
Edingtonite
Ba[Al
 
2
Si
 
3
O
 
10
] · 4H
 
2
O
Epistilbite
CaAl
 
2
Si
 
6
O
 
16
 · 5H
 
2
O
Erionite-Ca
(Ca,K
 
2
,Na
 
2
)
 
2
[Al
 
4
Si
 
14
O
 
36
] · 15H
 
2
O
Erionite-K
(K
 
2
,Ca,Na
 
2
)
 
2
[Al
 
4
Si
 
14
O
 
36
] · 15H
 
2
O
Erionite-Na
(Na
 
2
,K
 
2
,Ca)
 
2
[Al
 
4
Si
 
14
O
 
36
] · 15H
 
2
O
Faujasite Subgroup
Faujasite-Ca
(Ca,Na
 
2
,Mg)
 
3.5
[Al
 
7
Si
 
17
O
 
48
] · 32H
 
2
O
Faujasite-Mg
(Mg,Na
 
2
,Ca)
 
3.5
[Al
 
7
Si
 
17
O
 
48
] · 32H
 
2
O
Faujasite-Na
(Na
 
2
,Ca,Mg)
 
3.5
[Al
 
7
Si
 
17
O
 
48
] · 32H
 
2
O
Ferrierite
Ferrierite-K
(K
 
2
,Na
 
2
,Mg,Ca)
 
3-5
Mg[Al
 
5-7
Si
 
27.5-31
O
 
72
] · 18H
 
2
O
Ferrierite-Mg
(Mg,Na
 
2
,K
 
2
,Ca)
 
3-5
Mg[Al
 
5-7
Si
 
27.5-31
O
 
72
] · 18H
 
2
O
Ferrierite-Na
(Na
 
2
,K
 
2
,Mg,Ca)
 
3-5
Mg[Al
 
5-7
Si
 
27.5-31
O
 
72
] · 18H
 
2
O
Flörkeite
(K
 
3
Ca
 
2
Na)[Al
 
8
Si
 
8
O
 
32
] · 12H
 
2
O
Garronite
Na
 
2
Ca
 
5
Al
 
12
Si
 
20
O
 
64
 · 27H
 
2
O
Gaultite
Na
 
4
Zn
 
2
Si
 
7
O
 
18
 · 5H
 
2
O
Gismondine
Gismondine-Ba
Ba
 
2
Al
 
4
Si
 
4
O
 
16
 · 4-6H
 
2
O
Gismondine-Ca
CaAl
 
2
Si
 
2
O
 
8
 · 4H
 
2
O
Gmelinite
Gmelinite-Ca
(Ca,Na
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
Gmelinite-K
(K
 
2
,Na
 
2
,Ca)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
Gmelinite-Na
(Na
 
2
,Ca)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
Gobbinsite
Na
 
4
(Ca,Mg,K
 
2
)Al
 
6
Si
 
10
O
 
32
 · 12H
 
2
O
Gonnardite
(Na,Ca)
 
2
(Si,Al)
 
5
O
 
10
 · 3H
 
2
O
Goosecreekite
Ca[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
Gottardiite
Na
 
3
Mg
 
3
Ca
 
5
Al
 
19
Si
 
117
O
 
272
 · 93H
 
2
O
Harmotome
(Ba
 
0.5
,Ca
 
0.5
,K,Na)
 
5
[Al
 
5
Si
 
11
O
 
32
] · 12H
 
2
O
Heulandite-Ba
(Ba,Ca,K,Na,Sr)
 
5
Al
 
9
Si
 
27
O
 
72
 · 22H
 
2
O
Heulandite-Ca
(Ca,Na)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Heulandite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Heulandite-Na
(Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Heulandite-Sr
(Sr,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
 · 12H
 
2
O
Hsianghualite
Ca
 
3
Li
 
2
(Be
 
3
Si
 
3
O
 
12
)F
 
2
Laumontite
CaAl
 
2
Si
 
4
O
 
12
 · 4H
 
2
O
Ledererite
Leucite
K(AlSi
 
2
O
 
6
)
Lévyne
Lévyne-Ca
(Ca,Na
 
2
,K
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
Lévyne-Na
(Na
 
2
,Ca,K
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
Lovdarite
(Na,K,Ca)
 
4
(Be,Al)
 
2
Si
 
6
O
 
16
 · 4H
 
2
O
Maricopaite
Pb
 
7
Ca
 
2
(Si,Al)
 
48
O
 
100
 · 32H
 
2
O
Mazzite-Mg
K
 
2
Mg
 
2
Ca
 
1.5
Al
 
9.5
Si
 
26.5
O
 
72
 · 28H
 
2
O or near
Mazzite-Na
Na
 
4
[Al
 
4
Si
 
14
O
 
36
]
 
2
 · 30H
 
2
O
Merlinoite
(K,Na)
 
5
(Ca,Ba)
 
2
Al
 
9
Si
 
23
O
 
64
 · 23H
 
2
O
Mesolite
Na
 
2
Ca
 
2
Si
 
9
Al
 
6
O
 
30
 · 8H
 
2
O
Montesommaite
(K,Na)
 
9
Al
 
9
Si
 
23
O
 
64
 · 10H
 
2
O
Mordenite
(Na
 
2
,Ca,K
 
2
)Al
 
2
Si
 
10
O
 
24
 · 7H
 
2
O
Mutinaite
Na
 
3
Ca
 
4
Si
 
85
Al
 
11
O
 
192
 · 60H
 
2
O
Natrolite
Na
 
2
Al
 
2
Si
 
3
O
 
10
 · 2H
 
2
O
Natrolite Subgroup
Offretite
KCaMgAl
 
5
Si
 
13
O
 
36
 · 16H
 
2
O or near
Pahasapaite
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
 · 38H
 
2
O
Paranatrolite
Na
 
2
Al
 
2
Si
 
3
O
 
10
 · 3H
 
2
O
Parthéite
CaAl
 
2
Si
 
2
O
 
8
 · 2H
 
2
O
Paulingite
Paulingite-Ca
(Ca,K
 
2
,Na
 
2
,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
2
O
Paulingite-K
(K
 
2
,Ca,Na
 
2
,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
2
O
Paulingite-Na
(Na
 
2
,K
 
2
,Ca,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
2
O
Perlialite
K
 
9
Na(Ca,Sr)[Al
 
2
Si
 
4
O
 
12
]
 
6
 · 15H
 
2
O
Phillipsite-Ca
(Ca
 
0.5
,K,Na,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
.
 
 12H2O
Phillipsite-K
(K,Na,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
]
.
 
 12H
 
2
O
Phillipsite-Na
(Na,K,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
] · 12H
 
2
O
Pollucite
(Cs,Na)
 
2
(Al
 
2
Si
 
4
O
 
12
) · 2H
 
2
O
Roggianite
Ca
 
2
Be(OH)
 
2
Al
 
2
Si
 
4
O
 
13
 · 2.5H
 
2
O
Scolecite
CaAl
 
2
Si
 
3
O
 
10
 · 3H
 
2
O
Stellerite
Ca[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
Stilbite
Stilbite-Ca
NaCa
 
4
[Al
 
9
Si
 
27
O
 
72
] · nH
 
2
O
Stilbite-Na
(Na,Ca,K)
 
6-7
[Al
 
8
Si
 
28
O
 
72
] · nH
 
2
O
Terranovaite
(Na,Ca)
 
8
(Si
 
68
Al
 
12
)O
 
160
 · 29H
 
2
O
Tetranatrolite
Thomsonite-Ca
NaCa
 
2
Al
 
5
Si
 
5
O
 
20
 · 6H
 
2
O
Thomsonite-Sr
(Sr,Ca)
 
2
Na[Al
 
5
Si
 
5
O
 
20
] · 7H
 
2
O
Tschernichite
(Ca,Na
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 4-8H
 
2
O
Tschörtnerite
Ca
 
4
(Ca,Sr,K,Ba)
 
3
Cu
 
3
[(OH)
 
2
|Al
 
3
Si
 
3
O
 
12
]
 
4
 · nH
 
2
O
Wairakite
Ca(Al
 
2
Si
 
4
O
 
12
) · 2H
 
2
O
Weinebeneite
CaBe
 
3
(PO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
Wenkite
(Ba,K)
 
4
(Ca,Na)
 
6
[(SO
 
4
)
 
3
|(Si,Al)
 
20
O
 
39
(OH)
 
2
] · 0.5H
 
2
O
Willhendersonite
KCa[Al
 
3
Si
 
3
O
 
12
] · 5H
 
2
O
Yugawaralite
CaAl
 
2
Si
 
6
O
 
16
 · 4H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
16.10.1Bytownite
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
16.10.2Lisetite
CaNa
 
2
Al
 
4
Si
 
4
O
 
16
16.10.4Thomsonite-Ca
NaCa
 
2
Al
 
5
Si
 
5
O
 
20
 · 6H
 
2
O
16.10.5Gonnardite
(Na,Ca)
 
2
(Si,Al)
 
5
O
 
10
 · 3H
 
2
O
16.10.6Mesolite
Na
 
2
Ca
 
2
Si
 
9
Al
 
6
O
 
30
 · 8H
 
2
O
16.10.7Faujasite
16.10.8Garronite
Na
 
2
Ca
 
5
Al
 
12
Si
 
20
O
 
64
 · 27H
 
2
O
16.10.9Boggsite
Ca
 
8
Na
 
3
(Si,Al)
 
96
O
 
192
 · 70H
 
2
O
16.10.10Herschelite
16.10.11Phillipsite
16.10.12Fedorite
(Na,K)
 
2-3
(Ca
 
4
Na
 
3
)Si
 
16
O
 
38
F
 
2
 · 3.5H
 
2
O
16.10.13Willhendersonite
KCa[Al
 
3
Si
 
3
O
 
12
] · 5H
 
2
O
16.10.14Barrerite
(Na,K,Ca
 
0.5
)
 
2
[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
16.10.15Mordenite
(Na
 
2
,Ca,K
 
2
)Al
 
2
Si
 
10
O
 
24
 · 7H
 
2
O
16.10.16Reyerite
(Na,K)
 
2
Ca
 
14
(Si,Al)
 
24
O
 
58
(OH)
 
8
 · 6H
 
2
O
16.10.17Lévyne
16.10.18Clinoptilolite
16.10.19Heulandite
16.10.20Gobbinsite
Na
 
4
(Ca,Mg,K
 
2
)Al
 
6
Si
 
10
O
 
32
 · 12H
 
2
O
16.10.21Stilbite
16.10.22Dachiardite
16.10.23Offretite
KCaMgAl
 
5
Si
 
13
O
 
36
 · 16H
 
2
O or near
16.10.24Perlialite
K
 
9
Na(Ca,Sr)[Al
 
2
Si
 
4
O
 
12
]
 
6
 · 15H
 
2
O
16.10.26Paulingite
16.10.27Sodium Dachiardite
(Na
 
2
,Ca,K
 
2
)
 
4-5
Al
 
8
Si
 
40
O
 
96
 · 26H
 
2
O
16.10.28Mazzite-Mg
K
 
2
Mg
 
2
Ca
 
1.5
Al
 
9.5
Si
 
26.5
O
 
72
 · 28H
 
2
O or near
16.10.29Roggianite
Ca
 
2
Be(OH)
 
2
Al
 
2
Si
 
4
O
 
13
 · 2.5H
 
2
O

Other Names for Erionite

Other Languages:
German:Erionit
Spanish:Erionita

Other Information

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

References for Erionite

Reference List:

- +
Sheppard, R.A. and Gude, A.J. (1969b) Chemical composition and physical properties of the related zeolites offretite and erionite. American Mineralogist: 54: 875-886.

A. Gualtieri, G. Artioli, E. Passaglia, S. Bigi, A. Viani, and J.C. Hanson (1998): Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite. Am. Mineral. 83, 590-606.

E. Passaglia, G. Artioli, and A. Gualtieri (1998): Crystal chemistry of the zeolites erionite and offretite. Am. Mineral. 83, 577-589.

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    • Localities for Erionite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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
    Australia
     
    • New South Wales
      • Brisbane Co.
        • Merriwa
    		[MinRec 19:401-402]
    • Queensland
      • Lockyer Valley Region
        • Gatton Valley
    		Van King
    • Tasmania
      • Devonport district
    		http://www.crocoite.com/locationbulletins/part1/zeolites.pdf
    http://www.crocoite.com/locationbulletins/part1/zeolites.pdf
      • Moina District (Middlesex District)
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    Austria
     
    • Burgenland
      • Oberpullendorf
        • Kobersdorf
          • Pauliberg
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993); U. Kolitsch, W. Postl, H.-P. Bojar and W. Trattner (2009): Die Mineralvorkommen im Basalt des Pauliberges. In: Autorenkollektiv (Red. M. A. Götzinger und P. Huber) (2009): Die Mineralien des Burgenlandes - Geologie, Mineralogie und mineralische Rohstoffe. – Wissenschaftliche Arbeiten aus dem Burgenland, Band 126, Amt der Burgenländischen Landesregierung, Abteilung 7 - Landesmuseum, Eisenstadt, 83-99.
    • Carinthia
      • St Paul im Lavanttal
        • Kollnitz
    		G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    • Styria
      • Bad Radkersburg
        • Klöch
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs, 1993
    Bulgaria
     
    • Haskovo Oblast (Khaskovo Oblast)
      • Rhodope Mts
    Canada
     
    • British Columbia
      • Coalmont
    		Tschernich, R. (1992): Zeolites of the World, p.300
      • Kamloops Mining Division
        • Falkland
    		[Erionite-K] Tschernich, R. (1992): Zeolites of the World, p.161; American Mineralogist, Volume 67, pages 799-803, 1982
    [MinRec 19:333]
        • Monte Lake
          • Monte Hills
    		Tschernich, R. (1992): Zeolites of the World, p.99,161
        • Mt. Savona
          • Deadman's River
    		[Erionite-K] Tschernich, R. (1992): Zeolites of the World, p.161
    • Québec
      • Laurentides
        • Argenteuil RCM
          • Wentworth
            • Laurel
    		Van Velthuizen et al. (2006) Mineral. Record 37, 283 [locality 48]
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Ústí Region
        • Ústí nad Labem (Aussig)
    		[Erionite-Ca] 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
     
    Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona, p.150
    France
     
    • Auvergne
      • Haute-Loire
        • Saint-Julien-Chapteuil
          • Saint-Pierre-Eynac
    		Galli E, Gualtieri AF (2008) Direnzoite, [NaK6MgCa2(Al13Si47O120)·36H2O], a new zeolite from Massif Central (France): Description and crystal structure. American Mineralogist 93: 95–102
        • Yssingeaux
          • Araules
    		[Erionite-Ca] Gualtieri A, et al. (1998) Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite. American Mineralogist 83: 509-606
    • Rhône-Alpes
      • Ardèche
        • Villeneuve-de-Berg
          • Saint-Jean-le-Centenier
    		E. Passaglia et al. , Bull. Minéral. , 1985, 108, pp. 719-724. see also : http://membres.lycos.fr/volcanogeol/prismation/sites_france.htm
      • Loire
        • Montbrison
          • Saint-Georges-Haute-Ville
    		Personnaly collected by M. Diot.
        • Saint-Georges-en-Couzan
          • Châtelneuf
    French Southern and Antarctic Lands
     
    • Kerguelen Islands
    		Giret, A., Verdier, O. & Nativel, P. (1992). The zeolitisation of Kerguelen Islands, Southern Indian Ocean. In: Yoshida, Y., et al. (eds) Recent Progress in Antarctic Earth Science, Tokyo: Terra Publishing 32, 1–36. Co., pp. 457–463.
    Germany
     
    • Baden-Württemberg
      • Kaiserstuhl
        • Sasbach
    		Bega photo
    WEISENBERGER, T. & SPÜRGIN, S. (2009): Zeolites in alkaline rocks of the Kaiserstuhl Volcanic Complex, SW Germany – new microprobe investigation and the relationship of zeolite mineralogy to the host rock. Geologica Belgica, 12, 75-91.
    • Bavaria
      • Franconia
        • Maroldsweisach
    		Wittern: "Mineralfundorte in Deutschland", 2001
      • Upper Palatinate
        • Oberpfälzer Wald
          • Mitterteich
            • Wiesau
    		Pöllmann, H., (1990): Mineralparagenesen im Nephelinbasanit von Triebendorf/ Opf., Der Aufschluss, Vol. 41(4), 219-226
    • Hesse
      • Greifenstein
        • Allendorf
    		Lapis 2/2011
      • Vogelsberg
        • Gedern
        • Herbstein
        • Ortenberg
    		Passaglia, E., Gualtieri, A., Marchi, E. (2001): The crystal chemistry of Paulingite, European Journal of Mineralogy. Vol. 13, 113-119
    • Rhineland-Palatinate
      • Eifel
        • Mayen
          • Ettringen
            • Bellerberg volcano
    		[Erionite-Ca] Blass, G., Graf, H.W., Neue Mineralienfunde aus der Vulkaneifel, Mineralien-Welt 12/1, 17-25, 2001
    Greece
     
    • Aegean Islands (Aiyaíon) Department
      • Sámos Prefecture
        • Sámos Island
    		Econ Geol (1989)84:788-798
    Iceland
     
    [MinRec 12:21]
    Selbekk, R. S. & Mattsson, H. (2004): Zeolitt mineraliseringer i Hvalfjördur, Island. STEIN 31 (1), 28-33
    [MinRec 17:340]
    • Suður-Múlasýsla
    		[MinRec 12:21]
    Personal collection of Jamison K Turnbull.
    Italy
     
    • Latium
      • Rome Province
        • Rome
          • Valleranello
    • Sardinia
      • Cagliari Province
    		Ref.: Boscardin. M. (1975) - Informazioni di mineralogia italiana: 57)Zeoliti della sardegna - Notizie del Gruppo Min. Lombardo, fasc. 3, Milano, Sept. 1975,pp. 52-55
        • Pula
          • Nora
    		Conti-Vecchi, G. & Stara, P. (1991): Minerali della Sardegna. Della Torre, Ed., Cagliari, 276 pp
      • Oristano Province
    		Lapis 2003(2), 22
    • Veneto
      • Padova Province
        • Euganei Hills
          • Faedo
    		[Erionite-Ca] Passaglia E. and Taglavini A. (1995): Erionite from Faedo, Colli Euganei, Italy. N.Jb.Miner.Mh.,4, pagg.185-191.
      • Verona province
        • Vestenanuova
    		M.Mattioli, M.Cenni, G.Raffaelli (2008): I Minerali del Veronese - Le mineralizzazioni secondarie delle rocce vulcaniche dei Monti Lessini. Memorie del Museo Civico di Storia Naturale di Verona, II° serie - sezione Scienze della Terra 7 - 2008, 196
      • Vicenza Province
        • Montecchio Maggiore
          • San Pietro
    		Enrico Bonacina specimen
    Japan
     
    • Honshu Island
      • Chubu Region
        • Gifu Prefecture
          • Kawabe
    		Matsubara, S. (2003) Minerals in Japan (Field Best Encyclopedia, vol. 15, 253.
        • Niigata Prefecture
    		[Erionite-Ca] Am. Mineral. 52, 1785; Can. Mineral. 35, 1571.
    • Kyushu Region
      • Nagasaki Prefecture
        • Iki Island
    		[Erionite-Na] M. Shimazu & T. Mizota, J. Japan. assoc. Min. Petr. Econ. Geol. 67:418-424 (1972)
    Alfredo Petrov collection
    • Tokyo Prefecture
      • Ogasawara Islands
        • Chichijima Group
          • Chichi Island (Chichijima)
    		Mineralogical Journal Vol. 11 (1982) , No. 1 pp1-14
    New Zealand
     
    • North Island
      • Auckland
    		S. Broetto collection
    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
    		Essence of Micro-Scope, Lookout volcanics, Mt Lookout and Upcot Stations. 2009
      • Otago
    		[Erionite-K] J. Thornton in Micro-Scope, March 2007
    Pacific Ocean
     
    • South California Borderland
    		Hein, J.R., Reid, J.A., Conrad, T.A., Dunham, R.E., Clague, D.A., Schulz, M.S., and Davis, A.S. (2010): USGS Open-File Report 10-1069
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Jawor District
    		Eligiusz Szełęg private collection
    Romania
     
    • Harghita Co.
      • Odorheiu Secuiesc (Székelyudvarhely; Oderhellen)
        • Racoş (Racoşu de Jos)
    		Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
    Russia
     
    • Eastern-Siberian Region
      • Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai)
        • Enisei Range (Yenisei Ridge; Enisei Ridge)
          • Parvaya Noiba River
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Spain
     
    • Canary Islands
      • Las Palmas Province
        • Lanzarote
    		Strasser, A., Kirchner, E., (2006): Minerale aus einem Alkali-Basalt-Differentiat vom Risco Famara, Lanzarote, Kanarische Inseln, Der Aufschluss, Vol. 57, 335-338
          • Playa Blanca
    		Tschernich, R. (1992): Zeolites of the World, p. 52, 101, 301, 323, 362, 386, 415, 493.
    Turkey
     
    • Central Anatolia Region
      • Eskişehir Province
    		CAHIT HELVACI & RICARDO N. ALONSO (2000) Borate Deposits of Turkey and Argentina; A Summary and Geological Comparison. Turkish Journal of Earth Sciences, Vol. 9, 2000, pp. 1-27
      • Nevşehir Province
    		[Erionite-Ca] USGS Open File report 10-1286
    UK
     
    • Northern Ireland
      • Co. Antrim
    		[MinRec 20:395]
    [Erionite-Na] Passaglia E., Artioli G. and Gualtieri A. (1998): Crystal chemistry of the zeolites erionite and offretite. American Mineralogist 83, 577-589; Jaroslaw Skupiewski
    Passaglia, E., Gualtieri, A., Marchi, E. (2001): The crystal chemistry of Paulingite, European Journal of Mineralogy. Vol. 13, 113-119
    [Erionite-Ca] Paolo Grosso
    [MinRec 10:174-175]
        • Portrush
    		Zeolite colletion of Volker Betz
    • Scotland
      • North West Highlands (Inverness-shire)
        • Isle of Skye
          • Duirinish
            • Dunvegan
    		[UKJMM 16:21-27]
          • Trotternish
            • Staffin
          • Waternish
            • Edinbain
              • Black Hill
    		No reference listed
    Ukraine
     
    • Crimea Oblast'
      • Crimea peninsula
    		[Erionite-K] Domenico Preite
    USA
     
    • Arizona
      • Cochise Co.
        • Bowie area
    		MRDS database Dep. ID file #10062135, MRDS ID #TC35405.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 108, 160, 178, 216, 249; Sand, L.B. & A.J. Regis (1966), An unusual zeolite assemblage, Bowie, AZ (abstract), Geol. Soc. Amer. Spec. Paper 87; Regis, A.J. & L.B. Sand (1967), Lateral gradation of chabazite to herschelite in the San Simon basin (abstract), in S.W. Baily (editor), Clays and clay minerals. Proc. 15th. National Conference Clays and Clay Minerals: 193.
      • Gila Co.
        • Dripping Spring Mts
          • Banner District
            • Christmas area
              • Dripping Spring Wash
    		MRDS database Dep. ID #10062184, MRDS ID #TC35486.
      • Graham Co.
        • Ash Peak District
          • Thumb Butte area
    		[MinRec 12:43-44]
        • San Simon Valley
          • Chaney Place
    		MRDS database Dep. ID #10062187, MRDS ID #TC35489.
      • Maricopa Co.
        • Phoenix
    		[Erionite-K] AM61_853
      • Mohave Co.
        • Big Sandy Valley
          • Wikieup area
    		MRDS files #10062339.; Clays and Clay Minerals, Vol. 29, No. 5,378-384, 1981.
        • Big Sandy Wash area
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 109, 160, 178, 216; Ross, C.S. (1928), Sedimentary analcime, Amer.Min.: 13: 195-197; Ross, C.S. (1941), Sedimentary analcime, Amer.Min.: 26: 627-629.
    [Erionite-K] azminerals.com
    MRDS file #10062464.
    MRDS file #10062462.
      • Pima Co.
    		[Erionite-Ca] O. Dzillas
          • Little Ajo Mts
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 216.
      • Pinal Co.
        • Dudleyville
    		Thomssen, R.W. (1983), The minerals of Malpais Hill, Pinal Co., AZ, Min.Rec.: 14: 109-113.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 216; Thomssen, R.W. (1983), The minerals of Malpais Hill, Pinal Co., AZ, Min.Rec.: 14: 109-113.
        • Galiuro Mts
          • Bunker Hill District (Copper Creek District)
            • Copper Creek (Copper Creek Canyon)
    		Mr. Mark Ascher.
      • Santa Cruz Co.
        • Patagonia Mts
          • Guajolote Flat
    		[Erionite-K]
          • Red Mountain
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 216.
      • Yavapai Co.
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 216; Eyde, T.H. (1978), Arizona zeolites, AZ Dept. Min. Res. Mineral Rept. 1.
    • California
      • Del Norte Co.
        • Coastal Range
          • Crescent City area
            • Elk Creek
    		Tschernich, 1992. Zeolites of the World, p.164.
      • Inyo Co.
        • Black Mts
          • Saratoga District (Tecopa Mountain District; Shoshone District ?)
            • Shoshone
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Death Valley National Park
          • Black Mts
            • Saratoga District (Tecopa Mountain District; Shoshone District ?)
              • Tecopa
                • Lake Tecopa Basin
    		Sheppard, R.A. and Gude, A.J. (1968) Distribution and genesis of authigenic silicate minerals in tuffs of Pleistocene Lake Tecopa, Inyo County, California. USGS Professional Paper 597, 38 pp.: 15-16; Sheppard, R.A. and Gude, A.J. (1969b) Chemical composition and physical properties of the related zeolites offretite and erionite. American Mineralogist: 54: 877, 882-883; Starkey, H.C. and Blackmon, P.D. (1979) Clay mineralogy of Pleistocene Lake Tecopa, Inyo County, California. USGS Professional Paper 1061, 34 pp.: 18; Pemberton, H. Earl (1983), Minerals of California: 381.
        • Owens Valley
          • Olancha
    		Smith, George Irving & W.P. Pratt (1957), Core logs from Owens, China, Searles and Panamint Basins, California: USGS Bulletin 1045-A: 5; Hay, Richard Le Roy & Richard J. Moiola (1963), Authigenic silicate minerals in three desert lakes of eastern California (abstract): Program New York Meeting, Geological Society of America: 15-25; Hay, Richard Le Roy (1964), Phillipsite of saline lakes and soils American Mineralogist: 49: 1369; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 381.
      • Kern Co.
        • China Lake [town]
          • China Lake
    		Moiola, Richard J. & Richard L. Hay (1964), Zeolite zones in Pleistocene and recent sediments of China Lake, California (abstract): Geological Society of America, Cordilleran Section Meeting, Berkeley, California: 47, April 1963; […Geological Society of America Special Paper 76: 215 (1964)]: 47; Hay, Richard Le Roy & Richard J. Moiola (1963), Authigenic silicate minerals in three desert lakes of eastern California (abstract): Program New York Meeting, Geological Society of America: 76A; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 179.
        • Kramer District
          • Boron
    		Cal Div of Mines & Geology "Mineral Information Service" V. 22 N. 9 Sept 1969
        • Barstow
    		Sheppard, R.A. and Gude, A.J. (1969c) Diagenesis of tuffs in the Barstow formation, Mud Hills, San Bernardino County, California. USGS Professional Paper 634, 35 pp.: 2-3, 14-16; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 382.
    [Erionite-Na] Am.Min. 83 (1998), 577
          • Southern Front of the Cady Mountains
    		Sheppard, R.A. and Gude, A.J. (1964) Reconnaissance of zeolite deposits in tuffaceous rocks of the western Mojave Desert and vicinity, California. USGS Professional Paper 501-C: 116; Sheppard, R.A., Gude, A.J., and Munson, E.L. (1965) Chemical composition of diagenetic zeolites from tuffaceous rocks of the Mojave Desert and vicinity, California. American Mineralogist: 50: 244-249; Sheppard, R.A. and Gude, A.J. (1969b) Chemical composition and physical properties of the related zeolites offretite and erionite. American Mineralogist: 54: 875-886; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 382.
    • Colorado
      • Mineral Co.
        • Creede District
    		Minerals of Colorado (1997) Eckels, E. B.
    Rocks & Minerals 79:5 pp316-324
    • Idaho
      • Ada Co.
    		Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
      • Adams Co.
    		Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    Tschernich, 1992. Zeolites of the World,
    C. Lemanski, Jr. (re-entry lost Mindat data).
    • Nevada
      • Churchill Co.
        • Copper Valley District
    		NBMG Spec. Pub. 31 Minerals of Nevada
        • Eastgate District
    		NBMG Bull 83 Geology and Mineral Deposits of Churchill County, Nevada
      • Eureka Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Humboldt Co.
        • Opalite District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Lander Co.
    		NBMG Bull 80 Geology and Mineral Deposits of Lander County, Nevada
        • Steiner Canyon District
    		NBMG Bull 80 Geology and Mineral Deposits of Lander County, Nevada; Clays and Clay Minerals, Vol. 29, No. 5,378-384, 1981.
      • Nye Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Pershing Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Mount Tobin District
    		NBMG Bull 89 Geology and Mineral Resources of Pershing County, Nevada
    NBMG Bull 89 Geology and Mineral Resources of Pershing County, Nevada
    • New Mexico
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    Minerals of New Mexico 3rd ed.
    Minerals of New Mexico 3rd ed.
    • North Dakota
      • Dunn Co.
    		[Erionite-Ca] USGS Open File report 10-1286
    [Erionite-Ca] JAMES MacPHERSON (Associated Press Writer) "North Dakota Gravel Sparks Fears." 5 April 2008
    [Erionite-Ca] JAMES MacPHERSON (Associated Press Writer) "North Dakota Gravel Sparks Fears." 5 April 2008
    • Oregon
      • Baker Co.
        • Durkee
    		Tschernich, Rudy, 1992, Zeolites of the World
        • Lower Burnt River District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Swayze Creek
    		Micro Probe Volume VI Number 4
      • Clackamas Co.
    		Micro Probe Vol. 6 No. 4; Tschernich, R. (1992): Zeolites of the World, 116
    Micro Probe Volume VI Number 4
      • Columbia Co.
        • Goble
    		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
      • Jackson Co.
        • Lost Creek Reservoir
    		Collection of Kelly Starnes - Collected 1998
      • Lake Co.
    		Tschernich, R. (1992): Zeolites of the World, 118
        • Lakeview
    		Micro Probe Volume VI Number 4
      • Lincoln Co.
        • Agate Beach
    		[Erionite-K] Micro Probe Vol. 9 No. 3, Spring '01; Tschernich, R. (1992): Zeolites of the World, 116
      • Malheur Co.
    		Micro Probe Volume VI Number 4
    Micro Probe Volume VI Number 4; USGS Open File report 10-1286
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; American Mineralogist, Volume 94, pages 1262–1270, 2009
      • Marion Co.
    		[Erionite-K] The Canadian Mineralogist Vol. 35, pp. 1571-1606 (1997)
      • Tillamook Co.
    		Micro Probe (1990) Volume VII Number 1 pp 9-15
    Micro Probe Volume VIII Number 2 Fall 1995
    MinRec 32:239
      • Wallowa Co.
        • Joseph
    		Micro Probe Volume VI Number 4
      • Wheeler Co.
        • Spray
    		Micro Probe Volume VI Number 4
    Micro Probe Volume IX Number 2 Fall 2000
    • South Dakota
      • Shannon Co.
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    • Washington
      • Benton Co.
    		Tschernich, R. (1992): Zeolites of the World, p. 120
      • Douglas and Chelan Co. Border
    		[Erionite-K] Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4); American Mineralogist, Volume 67, pages 799-803, 1982
      • Thurston Co.
        • Black Hills
    		Zeolites of the World, R. Tschernich, 1991
      • Whitman Co.
    		Micro Probe Volume VII Number 9 Spring 1994
    • Wyoming
      • Park Co.
    		[MinRec 12:34]
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