2.9" Octahedral Magnetite Crystals In Calcite - Russia

Octahedral Magnetite Crystals In Calcite - Russia #209400

This is a beautiful, 2.9" wide cluster of octahedral magnetite crystals that was collected from the Kovdor Zheleznyi Mine (Iron Mine) in Russia. The magnetite formed in association with calcite and green tetraferriphlogopite. The magnetite crystals have magnetic properties.

Magnetite is an iron oxide mineral with the chemical formula Fe₃O₄. It the most magnetic naturally occurring mineral on earth and is an important iron ore. It has an iron content of up to 72.4% which explains why it is such a commonly mined iron ore. Magnetite can be found in igneous, metamorphic and sedimentary rock.

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