Milky Quartz
Quartz var. Milky Quartz · Mineral Specimen / Common Quartz
Crystal System
Trigonal, massive or xenomorphic pebble habit
Mineral Group
Silicates (Tectosilicate)
Chemical Formula
SiO2
Formation Process
Hydrothermal and magmatic crystallization from silica-rich aqueous solutions at various temperatures and pressures
About This Crystal
A small, tumbled or water-worn pebble of milky white quartz showing translucent to opaque areas with a vitreous to greasy luster and minor surface iron-staining.
Physical Characteristics
Color: White to milky white. Streak: White. Cleavage: None. Fracture: Conchoidal. Specific Gravity: 2.65. Tenacity: Brittle.
Optical Properties
Uniaxial positive, refractive index of 1.544 to 1.553, birefringence of 0.009, doubly refractive.
Hardness & Durability
Origin Region
Worldwide, commonly found in alluvial deposits and hydrothermal veins
Hardness & Durability
Mohs hardness of 7, excellent durability with no cleavage, highly resistant to scratching and chemical attack.
Care & Maintenance
Wash with warm soapy water using a soft brush, store separately to avoid scratching softer stones, highly resistant to light and common chemicals.
Rarity & Value
Common, very low commercial value, widely available as tumbled stones and mineral specimens.
Special Characteristics
Contains microscopic fluid and gas inclusions that cause the milky white turbidity and scattering of light.
Lore & History
Used traditionally for clarity of mind, emotional calm, and amplification of positive energy, though these are cultural and metaphysical beliefs rather than scientifically verified claims.