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Calcite

Choshi

Kurohai village, Choshi city, Chiba pref., Japan

Source for Quick lime and Sodium cyanide

Calcite

Field of view: 10 mm. Crystals of calcite. The transparent grains are calcite covered with an opaque white crust. The pale brown parts in the interstices of calcite crystals are mud.

Recovered from an open space of a calcite vein in a high-Mg andesite lava.

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