Tiny, deep red gemstone crystal from Burma. Spinel an oxide mineral with a composition of MgAl2O4. It is very hard, 7.5 to 8 on the Mohs, and is often found in octahedral crystals. For many centuries spinel was considered to be a ruby.
Dimensions (millimeters): 4 x 4 x 3
Dimensions (inches): .16 x .16 x .12
In Perky Box
Birthstone: July alternative
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