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7cm x 1cm x 0
It does not form from direct cooling of magma
Sulphur From El Desierto Mine San Pablo De Napa Daniel Compos Province Potosí Bolivia
Both minerals are commonly found as secondary minerals in similar geological settings
Copper from ray mine
Blue calcite 7cm x 1cm x 0Blue Calcite Natural Mineral Rough From Androy Region Madagascar Size 13. 4cm x 11. 2cm x 5cm Weight 1038g You will receive the item in the photo Blue calcite is a beautiful calming sky to medium blue variety of calcium carbonate. Its unique pastel colour comes from trace inclusions and natural exposure to ionizing radiation. It is a relatively soft mineral with a MOHs hardness rating of 3. Blue calcite belongs to the trigonal crystal system and
