Kunzite
Spodumene var. Kunzite · Semi-Precious Gemstone
Crystal System
Monoclinic; typically forms prismatic crystals with distinct striations parallel to the elongation.
Mineral Group
Silicates (Inosilicate)
Chemical Formula
LiAl(SiO3)2
Formation Process
Forms primarily in lithium-rich granitic pegmatites through magmatic-hydrothermal processes.
About This Crystal
A pale pink to lilac-colored transparent to translucent crystal tower, showing distinct vertical striations along the prism faces and a terminating termination point at the top.
Physical Characteristics
Pale pink to lilac body color, white streak, perfect prismatic cleavage in two directions at approximately 87 and 93 degrees, uneven to conchoidal fracture, specific gravity around 3.16 to 3.20, brittle tenacity, and often exhibits orange-to-yellow fluorescence under UV light.
Optical Properties
Biaxial positive with a refractive index between 1.660 and 1.676, strong pleochroism showing deep pink, pale pink, and clear or violet depending on the viewing angle.
Hardness & Durability
Origin Region
Notable sources include Afghanistan, Madagascar, Brazil, and the United States (California).
Hardness & Durability
Mohs hardness of 6.5 to 7, but possesses perfect cleavage which makes it vulnerable to splitting if struck; requires careful handling in jewelry.
Care & Maintenance
Clean with warm soapy water using a soft brush, avoid ultrasonic cleaners and steam, and store away from direct sunlight as prolonged exposure can cause the pink color to fade.
Rarity & Value
Uncommon to rare depending on color saturation and clarity; high-grade saturated pink stones command higher prices, while heat treatment or irradiation is sometimes used to enhance color.
Special Characteristics
Exhibits strong pleochroism and often strong pink-to-orange fluorescence under ultraviolet radiation; famous for its tendency to fade in sunlight (spodumene phenomenon).
Lore & History
Discovered relatively recently in the early 20th century and named after the famous gemologist George Frederick Kunz. In metaphysical lore, it is associated with the heart chakra, emotional healing, and unconditional love, though these are traditional beliefs rather than scientifically proven claims.