White African Opal is a white to cream to light tan stone with veining of black or gray. Like all Opals, it is a form of hydrated amorphous silica, however...
Porcelain Agate is a natural agate that is dyed and heated to give it a pattern that resembles porcelain.
Porcelain Agate is a natural agate that is dyed and heated to give it a pattern that resembles porcelain.
White African Opal is a white to cream to light tan stone with veining of black or gray. Like all Opals, it is a form of hydrated amorphous silica, however...
Feldspars are a group of rock-forming aluminium tectosilicate minerals, containing sodium, calcium, potassium or barium. The most common members of the feldspar group are the plagioclase feldspars and the alkali...