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Calcite can be identified by its rhombohedral cleavage and effervescence in acid. Feldspar can be identified by its two cleavage planes at nearly 90 degrees, and it often has a white to pink color. Both minerals can also be identified by their hardness using the Mohs scale.

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1y ago

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Can calcite scratch feldspar?

no


What minerals is a silicate Gematite Feldspar Calcite Halite?

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because it is softer


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No. Orthoclase is a variety of potassium feldspar.


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In order of decreasing hardness, the minerals are corundum, feldspar, apatite, calcite, and talc. Corundum is the hardest among them, followed by feldspar, then apatite, with calcite being softer, and talc as the softest. This order reflects their positions on the Mohs hardness scale.


Is feldspar harder than calcite?

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