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Calcite is clear naturally but it can be found in a variety of brilliant colors due to the presence of chemical impurities during formation
it is not uncommon for insects and other small animals to become trapped within tree sap
but most specimens have vivid color due to various impurities and are often fluorescent
incredibly brilliant pyrite and chalcopyrite
in iron smelting and other metallurgy
Meteorite - Seymchan - Iron Aquamarine Calcite is clear naturally butIron Coarse Octahedrite IIE Discovered 1967
US$ 45.00
US$ 10.00
US$ 150.00
US$ 50.00
