Blue Sapphire - Tumble Quality:Staff Pick Approximate Weight of 1 Pair:

Approximate Weight of 1 Pair: 42g

so not much of their skeletal structures have fossil records

Approximate weight of 1 pc: 300g

almost like you can see the brain through the cracks

Approximate Weight of 1 piece: 920g

Blue Sapphire - Tumble Quality:Staff Pick Approximate Weight of 1 Pair:Mined from: India Description: Sapphire is a precious gemstone belonging to the corundum family, which is a crystalline form of aluminum oxide. It is the second hardest natural mineral, ranking 9 on the Mohs scale, just below diamond. The color of blue sapphires is caused by the presence of trace amounts of titanium (Ti) and iron (Fe), which replace some of the aluminum atoms in the crystal lattice. These titanium and iron ions absorb certain