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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Jeffreyit

A synonym of Jeffreyite
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German name for:
This page provides mineralogical data about Jeffreyit.


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Unique IdentifiersHide

Mindat ID:
15199 (as Jeffreyit)
2086 (as Jeffreyite)
Long-form identifier:
mindat:1:1:15199:3 (as Jeffreyit)
mindat:1:1:2086:8 (as Jeffreyite)

Similar NamesHide

GeffroyiteA valid IMA mineral species(Cu,Fe,Ag)9(Se,S)8

Internet Links for JeffreyitHide

References for JeffreyitHide

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