Citrine Quartz
Quartz var. Citrine · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal, massive or crystalline habit
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2
Formation Process
Hydrothermal and magmatic processes, often formed via natural irradiation and thermal alteration of amethyst or smoky quartz
About This Crystal
A yellowish-orange crystalline quartz specimen showing translucent to transparent areas with iron oxide surface staining and typical conchoidal fractures
Physical Characteristics
Color ranges from pale yellow to brownish orange; white streak; Mohs hardness 7; conchoidal fracture; specific gravity around 2.65
Optical Properties
Uniaxial positive optical character with a refractive index of 1.544 to 1.553, showing weak double refraction and vitreous luster
Hardness & Durability
Origin Region
Found globally with notable deposits in Brazil, Madagascar, and the USA; forms in pegmatites and hydrothermal veins
Hardness & Durability
Mohs hardness of 7, good durability, no distinct cleavage, making it very suitable for various types of jewelry
Care & Maintenance
Clean with warm soapy water using a soft brush, avoid harsh chemicals and prolonged direct sunlight to prevent fading
Rarity & Value
Common to moderately rare for natural deep color; widely available due to heat-treated amethyst being sold as citrine
Special Characteristics
Often exhibits natural or artificial color zoning, piezoelectric properties, and sometimes contains fluid inclusions
Lore & History
Historically regarded as the stone of merchants and success, associated with the solar plexus chakra and traditionally believed to manifest abundance and positivity