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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-6)

A synonym of Monteregianite-(Y)
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Formula:
(Na,K)6(Y,Ca)2Si16O38 · 10H2O
Synonym:
A synonym of Monteregianite-(Y)
This page provides mineralogical data about Unnamed (MSH UK-6).


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Unique IdentifiersHide

Mindat ID:
27660 (as Unnamed (MSH UK-6))
2765 (as Monteregianite-(Y))
Long-form identifier:
mindat:1:1:27660:9 (as Unnamed (MSH UK-6))
mindat:1:1:2765:2 (as Monteregianite-(Y))

Internet Links for Unnamed (MSH UK-6)Hide

References for Unnamed (MSH UK-6)Hide

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