Blue Sapphire - Tumble Quality:Staff Pick Approximate Size for 1 piece:

Approximate Size for 1 piece: H 6cm x W 5cm x D 4cm Approximate Weight for 1 piece: 100g

Drill bits are very different than burrs

almost like you can see the brain through the cracks

The only other location this stone is mined is Russia

Blue Sapphire - Tumble Quality:Staff Pick Approximate Size for 1 piece: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