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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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Montregianite-(Y)

A synonym of Monteregianite-(Y)
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Formula:
(Na,K)6(Y,Ca)2Si16O38 · 10H2O
Synonym:
A synonym of Monteregianite-(Y)
Misspelt name used by Ghose et al. (1987) and later authors.


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Unique IdentifiersHide

Mindat ID:
39901 (as Montregianite-(Y))
2765 (as Monteregianite-(Y))
Long-form identifier:
mindat:1:1:39901:6 (as Montregianite-(Y))
mindat:1:1:2765:2 (as Monteregianite-(Y))

Similar NamesHide

Monteregianite-(Y)-Wickenburgite SeriesA solid-solution series between two end-member minerals

Internet Links for Montregianite-(Y)Hide

References for Montregianite-(Y)Hide

Reference List:
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