Quartz is one of the most famous minerals on the earth. It occurs in essentially all mineral environments, and is the crucial constituent of many rocks. It is likewise the […]
Turquoise-pyrite-quartz Turquoise, Bishop Mine, River Manganese District, Campbell County, Virginia, USA Turquoise pebble, made by tumbling the rough rock in a rotating drum with abrasive. Turquoise is a member of […]
Jasper is a type of mineral that is primarily composed of silica, with other trace elements and impurities giving it its unique colors and patterns. It is a member of […]
Emerald are a type of gemstone that belong to the beryl family, which has the chemical formula Be3Al2(SiO3)6. They are valued for their intense green color, which is caused by […]
Chalcedony is a mineral that is composed of microscopic crystals of quartz. It is a cryptocrystalline form of silica, meaning that its crystals are too small to be seen without […]