Lemon Quartz
Quartz var. Lemon Quartz · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal system, typically forming prismatic crystals terminated by rhombohedrons, though this specimen is a heavily fractured and tumbled or broken chunk.
Mineral Group
Silicates, specifically Tectosilicates
Chemical Formula
SiO2
Formation Process
Hydrothermal and magmatic processes, typically crystallizing from silica-rich fluids in pegmatites, veins, and cavities at varying temperatures and pressures.
About This Crystal
A pale yellow to greenish-yellow translucent crystalline chunk, showing internal fractures that create rainbow iridescence (fire), with a vitreous to greasy luster.
Physical Characteristics
Color is pale yellow; streak is white; no true cleavage, exhibits distinct conchoidal fracture; specific gravity is approximately 2.65; brittle tenacity; piezoelectric and pyroelectric properties.
Optical Properties
Uniaxial positive optical sign, doubly refractive, with low birefringence and a refractive index of approximately 1.544 to 1.553.
Hardness & Durability
Origin Region
Globally distributed, with major commercial quartz deposits found in Brazil, Madagascar, the United States, and the Alps.
Hardness & Durability
Mohs hardness of 7, making it durable for daily wear, though internal fractures make this particular specimen somewhat vulnerable to impact.
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh chemicals, ultrasonic cleaners if heavily fractured, and prolonged exposure to direct sunlight.
Rarity & Value
Common, widely available, and generally affordable, though enhanced color varieties like irradiated lemon quartz are commercially processed.
Special Characteristics
Internal stress fractures displaying thin-film interference (rainbow iridescence); piezoelectric properties.
Lore & History
Associated with clarity, optimism, and prosperity in modern crystal healing traditions, linked primarily to the solar plexus chakra.