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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אופל

A synonym of Opal
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Formula:
SiO2 · nH2O
Hebrew synonym of:
Hebrew name


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Name EncodingHide

CP1252:
’wpl
Latin-1:
'wpl
ASCII-7:
'wpl

Unique IdentifiersHide

Mindat ID:
29412 (as אופל)
3004 (as Opal)
Long-form identifier:
mindat:1:1:29412:8 (as אופל)
mindat:1:1:3004:1 (as Opal)

Internet Links for אופלHide

References for אופלHide

Reference List:
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