Ruby Corundum is an extremely hard rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks. It is an aluminum oxide with a chemical composition of Al2O3 and a hexagonal crystal structure. Ruby and Sapphire are varieties of Corundum.
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Ruby Corundum • 19.6 grams
SKU: 90100RBC-19-6
$5.00 Regular Price
$2.50Sale Price
Only 1 left in stock