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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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Osmelith

A synonym of Pectolite
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Formula:
NaCa2Si3O8(OH)
German synonym of:
This page provides mineralogical data about Osmelith.


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Unique IdentifiersHide

Mindat ID:
41941 (as Osmelith)
3141 (as Pectolite)
Long-form identifier:
mindat:1:1:41941:7 (as Osmelith)
mindat:1:1:3141:3 (as Pectolite)

Similar NamesHide

OsumilithA synonym of Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30
Osumilith-(Mg)A synonym of Osumilite-(Mg)KMg2Al3(Al2Si10)O30

Internet Links for OsmelithHide

References for OsmelithHide

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