Lemon Quartz
Quartz var. Lemon Quartz · Semi-Precious Gemstone
Crystal System
Trigonal, with a massive to crystalline habit, often found as an amorphous or tumbled fragment in this specific processed state.
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2
Formation Process
Hydrothermal and igneous formation, often subjected to specific heat treatments or irradiation to achieve the vivid yellow-green color.
About This Crystal
A pale yellow-green, translucent to transparent crystal fragment held in the palm of a hand. It exhibits a vitreous luster, smooth surfaces from handling or tumbling, and internal cloudy white feather inclusions.
Physical Characteristics
Color is a light greenish-yellow; streak is white; cleavage is absent; fracture is conchoidal; specific gravity is approximately 2.65; tenacity is brittle; lacks magnetism; exhibits piezoelectric properties.
Optical Properties
Refractive index ranges from 1.544 to 1.553; uniaxial positive optical character; birefringence is 0.009; generally low dispersion; singly refractive in the optic axis direction and doubly refractive otherwise.
Hardness & Durability
Origin Region
Brazil, Madagascar, and the United States, typically formed through hydrothermal processes or low-temperature igneous environments.
Hardness & Durability
Mohs hardness of 7; fair to good toughness with no cleavage planes, making it very durable and suitable for everyday jewelry wear.
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh chemicals, ultrasonic cleaners, and prolonged direct sunlight to prevent fading.
Rarity & Value
Common, as natural lemon quartz is rare and most commercial lemon quartz is produced by irradiating and heating yellow-to-brown quartz; affordable price range.
Special Characteristics
Displays internal cloudy veiling and minor fracture inclusions, common in natural and heat-treated quartz varieties.
Lore & History
Associated with mental clarity, optimism, and abundance. Linked traditionally to the Solar Plexus chakra in crystal healing, though these are metaphysical beliefs rather than scientific facts.