Milky White Quartz Crystal Cluster Royalty-Free Stock Photo

A specimen of a milky quartz crystal cluster on black background. Quartz is the second most abundant mineral in the Earths continental crust, after feldspar. Milk quartz or milky quartz may be the most common variety of crystalline quartz and can be found almost anywhere. The white color may be caused by minute fluid inclusions of gas, liquid, or both, trapped during the crystal formation. The cloudiness caused by the inclusions effectively bars its use in most optical and quality gemstone applications.