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Brittle starfish ophuroides from mecissi area Morocco age- ordovcian
5cm x 4cm x 2
trace elements often infiltrate the fossilization process
These crystals typically form as hexagonal prisms
Dendrites are branching tree like crystals habits that form through rapid non equilibrium crystallization from mineral rich fluids or supercooled melts
Blue calcite Brittle starfish ophuroides from mecissiBlue Calcite Natural Mineral Rough From Androy Region Madagascar Size 9. 7cm x 7. 2cm x 7. 3cm Weight 629g 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
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