Clear Quartz
Quartz var. Clear Quartz · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal system, typically faceted into a cut pendulum habit
Mineral Group
Silicates, specifically Tectosilicates
Chemical Formula
SiO2
Formation Process
Hydrothermal and pegmatitic crystallization from silica-rich fluids at varying temperatures and pressures
About This Crystal
A faceted pendant made of transparent, colorless crystalline quartz, featuring clean geometric facets converging into a point at the base with some internal veiling and minor inclusions visible near the tip.
Physical Characteristics
Colorless body color with a white streak, conchoidal fracture, lack of distinct cleavage, specific gravity of approximately 2.65, brittle tenacity, and vitreous luster
Optical Properties
Uniaxial positive with a refractive index of 1.544 to 1.553, showing double refraction and a vitreous luster without notable pleochroism in clear varieties
Hardness & Durability
Origin Region
Global distribution including Brazil, Madagascar, USA, and the Alps; formed in diverse geological environments
Hardness & Durability
Mohs hardness of 7, good durability, resistant to scratching by most common materials, and suitable for daily wear in jewelry
Care & Maintenance
Safe to clean with warm soapy water and a soft brush; resistant to most household chemicals, stable in sunlight, but should be stored separately to prevent scratching softer stones
Rarity & Value
Common, widely accessible and affordable, with value determined by clarity, size, and precision of cut rather than extreme scarcity
Special Characteristics
Displays piezoelectric and pyroelectric properties, and may contain minor natural fluid or crystal inclusions
Lore & History
Known historically as the 'Master Healer' in crystal lore, widely used in ancient civilizations for divination, scrying, and balancing energy, strongly associated with the Crown Chakra in modern metaphysical practices