Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Nevada Opal

A synonym of Opal
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Synonym:
A synonym of Opal
From the Virgin Valley, Humboldt Co., Nevada


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Unique IdentifiersHide

Mindat ID:
9805 (as Nevada Opal)
3004 (as Opal)
Long-form identifier:
mindat:1:1:9805:8 (as Nevada Opal)
mindat:1:1:3004:1 (as Opal)

Internet Links for Nevada OpalHide

References for Nevada OpalHide

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