Sapphire 5-6mm Irregular Cube - 15-16 Inch Stone Type_Hematite This material is actually Serpentine

This material is actually Serpentine

but has been used historically to describe the transparent variety

It is considered a precious Opal

characterized by its color range of black

Blue Apatite

Sapphire 5-6mm Irregular Cube - 15-16 Inch Stone Type_Hematite This material is actually SerpentineSapphires are precious gemstones, but unlike rubies, they come in a rainbow of colors besides red! They are all varieties of the mineral corundum, known for its incredible hardness, second only to diamond . This makes sapphires very durable and scratch resistant. Formed deep underground during the cooling of magma, sapphires get their various colors from trace elements. Iron gives them blue, the most famous sapphire color, while titanium can create