Erionite Subgroup from
Lake Tecopa Zeolite deposit, Lake Tecopa Basin, Inyo County, California, USA

Classification
Locality type:	Deposit
Species:	'Erionite Subgroup' (not an IMA approved species)
Formula:	M₂[Al₄Si₁₄O₃₆] · 15H₂O
Comments:	Occurs as monominerallic beds or in association with other silicates.
Confirmation
Validity:	Believed Valid
Data
Mineral Data:	Click here to view Erionite Subgroup data
Locality Data:	Click here to view Lake Tecopa Zeolite deposit, Lake Tecopa Basin, Inyo County, California, USA
Data Identifiers
Mindat Occurrence Record ID:	638611
Long-form Identifier:	1:3:638611:5
GUID (UUID V4):	04c1d5e1-5dbc-4554-aee5-34ada44772e9
Nearest other occurrences of Erionite Subgroup

3.2km (2.0 miles)	ⓘ Ash Meadows Zeolite deposit, Shoshone, Dublin Hills, Inyo County, California, USA
References
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. Van Nostrand Reinhold Company Inc.*

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