Olivine is a magnesium iron silicate mineral and belongs to the orthorhombic crystal system. Os cristais são colunares curtos. Complete crystals are rare. Most of them are irregular round granular aggregates. They have glass luster, transparente a translúcido, e dureza de 6.5-7.0. Olivine is a kind of self-colored gemstone, which is green due to iron […]
