Magnesite

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Magnesite is an important mineral of magnesium, and is used as an insulating material. White magnesite is also used as a minor collector's gem, polished into beads and spheres, as well as carved into figures. These forms of magnesite often have veins of black or brown rock running through the mineral.

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Magnesite is an important mineral of magnesium, and is used as an insulating material. White magnesite is also used as a minor collector's gem, polished into beads and spheres, as well as carved into figures. These forms of magnesite often have veins of black or brown rock running through the mineral.

Magnesite belongs to the group of minerals calcite, a group of related carbonates that are isomorphic to each other. They are similar in many physical properties, and can partially or totally replace one another, forming a series solid solution. All members of the calcite group crystallize in the trigonal system, have perfect rhombohedral cleavage, and exhibit strong double refraction in the transparent rhombohedron.

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