Aura Quartz
Quartz (Silicon Dioxide) coated with metal vapors · Decorative Stone / Altered Mineral Specimen
Crystal System
Trigonal; typical habit is hexagonal prismatic crystals with pyramidal terminations
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2 (base) + Au/Ag/Ti/Pt (surface coating)
Formation Process
Natural hydrothermal quartz crystals subjected to a man-made Chemical Vapor Deposition (CVD) process
About This Crystal
Transparent to translucent prismatic crystals with a surface iridescence. Exhibits a metallic, rainbow-like pearly sheen over clear quartz
Physical Characteristics
Colorless body with iridescent surface sheen; white streak; no cleavage; conchoidal fracture; 2.65 specific gravity
Optical Properties
Uniaxial (+) with refractive index 1.544-1.553; exhibit thin-film interference (iridescence) due to metal coating
Hardness & Durability
Origin Region
Base quartz primarily from Brazil or Arkansas, USA; bonding process usually occurs in lab facilities
Hardness & Durability
Mohs 7 (base quartz); coating is very thin and can be scratched or worn away easily; brittle
Care & Maintenance
Avoid abrasive cleaners and harsh chemicals; clean only with warm soapy water and soft cloth; do not use ultrasonic cleaners
Rarity & Value
Common; value depends on the quality of base quartz and the vibrancy of the coating; relatively inexpensive
Special Characteristics
Thin-film interference creates a 'rainbow' effect; piezoelectric properties in the base quartz; permanent metallic bond
Lore & History
Modern creation from the 1980s; traditionally associated with high-vibration energy, aura cleansing, and the crown chakra