Clear Quartz
Quartz (Silicon Dioxide) · Semi-Precious Gemstone / Mineral Specimen
Crystal System
Trigonal system, typically forming prismatic crystals terminated by six-sided pyramids
Mineral Group
Silicates (Tectosilicates subgroup)
Chemical Formula
SiO2
Formation Process
Forms in a wide range of environments including igneous, metamorphic, and sedimentary rocks, most notably from hydrothermal veins and pegmatites
About This Crystal
A small, tumbled, whitish-clear specimen showing translucent to transparent clarity with a vitreous luster, smooth polished surface, and subtle internal fractures
Physical Characteristics
Color is clear to white, white streak, conchoidal fracture, no true cleavage, specific gravity of approximately 2.65, brittle tenacity
Optical Properties
Uniaxial positive optical character, refractive index of 1.544 to 1.553, low birefringence of 0.009, singly or doubly refractive depending on light path
Hardness & Durability
Origin Region
Found globally; major deposits in Brazil, Madagascar, USA, and the Himalayas
Hardness & Durability
Mohs hardness of 7, good durability and toughness, making it highly suitable for everyday jewelry wear
Care & Maintenance
Easy to maintain; can be cleaned safely with warm soapy water and a soft brush, avoiding harsh chemical solvents and sudden extreme temperature changes
Rarity & Value
Common and abundant worldwide, highly affordable, with value varying based on clarity, size, and presence of special inclusions or ethical sourcing
Special Characteristics
Exhibits piezoelectric and pyroelectric properties, can generate an electrical charge under mechanical stress or temperature change
Lore & History
Historically revered across ancient cultures as a powerful healing stone, often associated with clarity, amplification of energy, and alignment with all chakras in modern metaphysical practices