Clear Quartz
Quartz (Silicon Dioxide) · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal system, typically forming hexagonal prisms terminated by pyramids
Mineral Group
Silicate mineral group, specifically tectosilicates
Chemical Formula
SiO2
Formation Process
Forms primarily in igneous, metamorphic, and hydrothermal environments from cooling silica-rich fluids
About This Crystal
A tumbled, colorless, transparent to translucent specimen displaying internal fractures and a brilliant vitreous luster
Physical Characteristics
Colorless body color with a white streak, conchoidal fracture, no distinct cleavage, specific gravity of approximately 2.65, and brittle tenacity
Optical Properties
Uniaxial positive with a refractive index of 1.544 to 1.553, and exhibits double refraction
Hardness & Durability
Origin Region
Found worldwide with major deposits in Brazil, Madagascar, the United States, and the Himalayan region
Hardness & Durability
Mohs hardness of 7, excellent durability with no cleavage making it very wearable for various jewelry types
Care & Maintenance
Clean with warm soapy water and a soft brush, store away from direct sunlight and harder minerals to prevent scratching
Rarity & Value
Very common mineral with low to moderate value depending on clarity, size, and cutting quality
Special Characteristics
Exhibits strong piezoelectric and pyroelectric properties, often containing internal fluid inclusions or phantom growth lines
Lore & History
Historically revered across many ancient cultures as a powerful healing stone, traditionally known as the master healer and associated with all chakras