Druzy Quartz
Quartz (Silicon Dioxide) · Mineral Specimen
Crystal System
Trigonal, crystal habit is botryoidal with a druzy crust of micro-crystals
Mineral Group
Silicates (Tectosilicate subgroup)
Chemical Formula
SiO2
Formation Process
Hydrothermal and sedimentary deposition where silica-rich fluids fill cavities and crystallize on a matrix under moderate temperature and pressure
About This Crystal
A matrix specimen covered in a sparkling crust of small, interlocking quartz crystals with a botryoidal to drusy texture, displaying pale off-white to yellowish-cream tones with minor iron oxide staining
Physical Characteristics
Color is milky white to light yellow-brown, streak is white, cleavage is absent, fracture is conchoidal, specific gravity is approximately 2.65, brittle tenacity, and non-magnetic
Optical Properties
Refractive index ranges from 1.544 to 1.553, uniaxial positive, exhibits a vitreous to sugary luster with no significant pleochroism or dispersion in this micro-crystalline form
Hardness & Durability
Origin Region
Found globally; major deposits in Brazil, Madagascar, USA, and India, typically in volcanic cavities or hydrothermal veins
Hardness & Durability
Mohs hardness of 7, good durability and toughness, resistant to scratching by most common materials, suitable for general decorative and jewelry use
Care & Maintenance
Easy to clean using warm soapy water and a soft brush, store away from harder stones to avoid scratching surrounding objects, stable in light and heat
Rarity & Value
Common, widely accessible and affordable, with value depending heavily on the aesthetic appeal of the matrix and overall crystal coverage
Special Characteristics
Sparkling drusy coating providing high light reflection, with subtle iron-staining giving warm patches of color
Lore & History
Quartz has been utilized historically across diverse cultures for ornamentation and ceremonial tools, and in modern metaphysical practices is believed to amplify energy, clarity, and emotional balance