Clear Quartz
Quartz (Silicon Dioxide) · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal crystal system with a polished hexagonal prismatic habit (tower or generator form)
Mineral Group
Silicates, specifically Tectosilicates
Chemical Formula
SiO2
Formation Process
Hydrothermal and magmatic processes, crystallizing from silica-rich fluids at varying temperatures and pressures within crustal rocks.
About This Crystal
The specimen is a carved and polished crystal tower (generator) with a hexagonal cross-section and a pointed termination. It displays a translucent to semi-transparent milky-white body with subtle internal fractures, cloudiness, and minor dark inclusions near the base.
Physical Characteristics
Color is milky white to colorless; streak is white; crystal habit is artificially shaped into a polished tower; cleavage is absent; fracture is conchoidal; specific gravity is approximately 2.65; tenacity is brittle; exhibits piezoelectric properties.
Optical Properties
Singly or weakly doubly refractive with a uniaxial positive optical character; refractive index ranges from 1.544 to 1.553; birefringence is 0.009; vitreous luster on polished surfaces.
Hardness & Durability
Origin Region
Globally distributed; major commercial sources include Brazil, Madagascar, the United States, and Arkansas. Forms in diverse geological environments including pegmatites, hydrothermal veins, and sedimentary rocks.
Hardness & Durability
Mohs hardness of 7; good durability and toughness, though internal fractures can act as weak points; suitable for daily jewelry wear with proper setting protection.
Care & Maintenance
Safe to clean with warm soapy water and a soft brush; avoid harsh chemicals and sudden thermal shock; store away from direct sunlight and separated from softer stones.
Rarity & Value
Common; widely accessible and affordable, with value determined by clarity, size, and craftsmanship of the cut.
Special Characteristics
Displays internal veiling and minor mineral inclusions; known for its piezoelectric and pyroelectric properties.
Lore & History
Historically regarded as a powerful healing stone across various ancient cultures, often called the 'Universal Crystal' or 'Master Healer' in modern metaphysical practices, traditionally associated with amplifying energy and cleansing all chakras.