Citrine / Smoky Quartz / Raw Quartz
Quartz var. Citrine and Smoky Quartz · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal, with prismatic and irregular pebble-like habit
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2
Formation Process
Hydrothermal and magmatic crystallization within pegmatites and volcanic cavities
About This Crystal
A collection of tumbled and raw quartz stones exhibiting warm golden-yellow, amber, brown, and translucent to transparent appearance with natural inclusions and matrix patches
Physical Characteristics
Color ranges from pale yellow to deep brown; white streak; no cleavage; conchoidal fracture; specific gravity around 2.65; brittle tenacity
Optical Properties
Singly refractive optically uniaxial positive, vitreous luster, low birefringence
Hardness & Durability
Origin Region
Brazil, Madagascar, and various global pegmatite localities
Hardness & Durability
Mohs hardness of 7, making it durable for daily jewelry wear with good toughness
Care & Maintenance
Clean with warm soapy water; avoid prolonged direct sunlight to prevent color fading; avoid harsh chemicals
Rarity & Value
Common to moderately rare depending on natural color saturation; widely available and affordable
Special Characteristics
Natural color zoning, internal fractures, and inclusions, with some pieces showing rutile or iron oxide staining
Lore & History
Historically associated with wealth, abundance, and positivity in various cultures; traditionally linked to the solar plexus chakra in crystal healing lore