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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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Unnamed (MSH UK-29)

A synonym of Nontronite
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Formula:
Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Synonym:
A synonym of Nontronite
This page provides mineralogical data about Unnamed (MSH UK-29).


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Unique IdentifiersHide

Mindat ID:
27615 (as Unnamed (MSH UK-29))
2924 (as Nontronite)
Long-form identifier:
mindat:1:1:27615:9 (as Unnamed (MSH UK-29))
mindat:1:1:2924:3 (as Nontronite)

Internet Links for Unnamed (MSH UK-29)Hide

References for Unnamed (MSH UK-29)Hide

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