White Quartz
Quartz var. White Quartz / Milky Quartz · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal system; commonly cut and polished into a six-sided prismatic tower habit with a pyramidal termination.
Mineral Group
Silicates (specifically Tectosilicates)
Chemical Formula
SiO2
Formation Process
Hydrothermal and pegmatitic formation from silica-rich fluids cooling under high pressure and temperature.
About This Crystal
A polished crystal tower featuring a milky white body color, translucent to sub-translucent transparency, a vitreous to waxy luster, and some dark matrix inclusions or fractures near the base.
Physical Characteristics
White to colorless body color, white streak, no true cleavage, conchoidal fracture, specific gravity around 2.65, brittle tenacity, and displays piezoelectric properties.
Optical Properties
Uniaxial positive optical character, refractive index of 1.544 to 1.553, double refraction (birefringence of 0.009), typically non-pleochroic.
Hardness & Durability
Origin Region
Globally distributed; major sources include Brazil, Madagascar, the United States, and the Alps.
Hardness & Durability
Mohs hardness of 7, making it durable for daily wear, though its brittle nature requires protection from hard impacts.
Care & Maintenance
Can be cleaned safely with warm soapy water and a soft brush; avoid harsh chemicals and prolonged direct sunlight if dyed, though natural white quartz is stable.
Rarity & Value
Very common and widely available; low to moderate monetary value depending on size, clarity, and craftsmanship of the carving.
Special Characteristics
May exhibit weak phosphorescence or piezoelectricity under mechanical stress; contains microscopic fluid inclusions causing the milky appearance.
Lore & History
Often associated with clarity, purification, and spiritual connection. Connected traditionally to the crown chakra in crystal healing practices.