Rainbow Carborundum (Silicon Carbide) Crystal Specimen
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🖤🌈 Black And Rainbow Carborundum Cluster Mineral Speciman
🌈🌈 Amazing Quality Rainbow Carborundum
🖤➡️Note: Please exercise caution when handling these specimens due to the abrasive nature of the material and sharp crystal edges.
Mineralogical Info:
Silicon carbide (SiC), also known as carborundum /kɑrbəˈrʌndəm/, is a compound of silicon and carbon with chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been mass-produced since 1893 for use as an abrasive. Wide-scale production is credited to Edward Goodrich Acheson in 1890. Acheson was attempting to prepare artificial diamonds when he heated a mixture of clay (aluminum silicate) and powdered coke (fuel) (carbon) in an iron bowl.
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