
Tumbled Tourmalinated Quartz Crystal
Tourmalated quartz is a type of quartz crystal with long, narrow inclusions of tourmaline. Tourmaline is an umbrella term for boron silicate minerals with the same structure but slightly varying chemicals. While tourmaline is a stone of many faces, the three primary forms are schorl, dravite, and elbaite. Quartz is the second most abundant mineral in Earth's continental crust, after feldspar. Quartz is an igneous rock composed of oxygen and silicon atoms that crystallizes around magma or hydrothermal vents. It is the most abundant mineral on planet earth and can be found in the form of points, masses, grains, prisms, and even threaded. Quartz was first recorded in 300 B.C. by Theophrastus and was given the name kristallos. The origin comes from the word “ice” signifying the ancient belief that Quartz was encapsulated in ice. The modern name, Quartz Crystal, comes from the German word "quartz" meaning "hard" and the Ancient Greek word "kruos" meaning "icy cold" Impurities and inclusions