Turquoise Gemstone Crystals

Turquoise can be described as an opaque, blue to green mineral which is a hydrous phosphate of aluminum and copper. Turquoise has an average hardness of 6 which is slightly above that of window glass. This property makes even the smallest particles of the mineral fragile when exposed to force. Other properties like color and luster depend on the minerals grain size. With regards to luster, large grains of turquoise are waxy, transparency is normally opaque but might vary to semi-translucent in small grains. Check turquoise gemstone