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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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Gahnit

A synonym of Gahnite
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Formula:
ZnAl2O4
German name for:
This page provides mineralogical data about Gahnit.


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Unique IdentifiersHide

Mindat ID:
14407 (as Gahnit)
1632 (as Gahnite)
Long-form identifier:
mindat:1:1:14407:2 (as Gahnit)
mindat:1:1:1632:8 (as Gahnite)

Similar NamesHide

CahniteA valid IMA mineral speciesCa2[B(OH)4](AsO4)
Gahnite (of Lobo da Silveira)A synonym of Vesuvianite(Ca,Na,◻)19(Al,Mg,Fe3+)13(◻,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
GainiteA synonym of Hainite-(Y)
GuaniteA synonym of Struvite(NH4)Mg(PO4) · 6H2O
KainiteA valid IMA mineral speciesKMg(SO4)Cl · 3H2O
KaneitA synonym of Kaneite
KanoitA synonym of Kanoite
KianitA synonym of Kyanite
KonitA synonym of Mg-rich DolomiteCaMg(CO3)2
KühniteA synonym of Berzeliite(NaCa2)Mg2(AsO4)3

Internet Links for GahnitHide

References for GahnitHide

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