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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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Spatformig Jernmalm

A synonym of Siderite
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Formula:
FeCO3
Swedish synonym of:
This page provides mineralogical data about Spatformig Jernmalm.


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Unique IdentifiersHide

Mindat ID:
9578 (as Spatformig Jernmalm)
3647 (as Siderite)
Long-form identifier:
mindat:1:1:9578:1 (as Spatformig Jernmalm)
mindat:1:1:3647:0 (as Siderite)

Internet Links for Spatformig JernmalmHide

References for Spatformig JernmalmHide

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