Green Quartz
Quartz var. Green Quartz · Semi-Precious Gemstone / Mineral Specimen
Crystal System
Trigonal, prismatic crystal habit with slightly eroded termination
Mineral Group
Silicates, Tectosilicate
Chemical Formula
SiO2
Formation Process
Hydrothermal veins and pegmatitic environments, crystallizing from silica-rich aqueous solutions at low to moderate temperatures and pressures
About This Crystal
A small, pale green, translucent crystal fragment displaying an elongated prismatic form with minor surface etching and reddish-brown iron oxide or clay inclusions trapped along micro-fractures
Physical Characteristics
Pale green body color, white streak, conchoidal fracture, lack of distinct cleavage, specific gravity of approximately 2.65, brittle tenacity
Optical Properties
Singly refractive or anomalous double refraction with a refractive index of 1.544 to 1.553, uniaxial positive, vitreous luster
Hardness & Durability
Origin Region
Found worldwide; notable deposits in Brazil, Madagascar, and the United States
Hardness & Durability
Mohs hardness of 7, good durability for jewelry use with no major cleavage concerns, resistant to standard household wear
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh acids, extreme thermal shock, and prolonged direct sunlight if color is irradiation-induced
Rarity & Value
Common mineral species, though specific natural green colorations or clean gem grades can be uncommon and moderately priced depending on origin
Special Characteristics
May exhibit piezoelectric properties and minor iron-staining inclusions visible on the surface and sub-surface
Lore & History
Associated traditionally with the heart chakra, emotional balance, renewal, and growth, though these properties are purely traditional and metaphysical lore