Moss Opal

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Pstan, Zhana-Arkinskii rayon, Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan
© Igor Savin

A variety of Opal

Opal with dendritic inclusions, usually green silicates.

Classification of Moss Opal
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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.
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Localities for Moss Opal
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.
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(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.


Austria
Lower Austria Waldviertel Waidhofen an der Thaya Dobersberg Waldkirchen	R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)

Cuba	Mineral Collector 10:118 (1903)


Kazakhstan
Karagandy Province (Qaragandy Oblysy; Karaganda Oblast') Zhana-Arkinskii rayon Pstan	Gems of Kazakhstan, - textbook, Almaty, 1999, v.1, pp. 71-73 (in Rus.)

Slovakia
Košice Region Košice Co. Herľany	Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
Trebišov Co. Kuzmice

USA
California Fresno Co. Fresno Mountains East of Fresno Unnamed Opal occurrence	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282.
Kern Co. Johannesburg District Johannesburg Moss Opal occurrence	Stoddard, B.H. (1923), Gems and precious stones Mineral Resources U.S., 1920, part 2: 215-218; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282.
Colorado Yuma Co. Republican River South Fork	Minerals of Colorado (1997) E.B. Eckels
Kansas Clark Co.	Jay Ellis Ransom,1974, Gems and Minerals of America
Logan Co.	Ransom, 1974. Gems and Minerals of America
Wallace Co.	Ransom, 1974. Gems and Minerals of America
Nebraska Douglas Co.	Jay Ellis Ransom,1974,Gems and Minerals of America
Morrill Co. Bridgeport	MacFall (1975) Gem Hunter's Guide
New Mexico Sierra Co. Jornada Draw	The Mineralogist, v. 9, no. 5, p. 181.
Oregon Lake Co. Juniper Ridge Opal Mine	Extra Lapis - English No. 10 Opal

Mineral	and/or Locality
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