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Chemical Composition : LiAlSi2O6 [Lithium Aluminum Silicate]
Hardness : 6.5 – 7.0
Specific Gravity (Density) : 3.03 – 3.23 (g/cm3)
Refractive Index : 1.653 – 1.682 Biaxial ( + )
Kunzite is a member of the Spodumene Family of minerals that also includes Hiddenite. It is a beautiful gem that is found as colorless, pale to deep pink and purplish pink. Kunzite is stronly pleochroic, meaning it has a color intensity difference when viewed from different directions. It is a very difficult gem to facet because of its strong pleochroism, easy cleavage and splintery fracture. Other colors of Spodumene are colorless, yellow (Triphane), pale to deep green (Hiddenite), blue-green and rarely blue.
There are many localities for fine Kunzite crystals including Nuristan district, Laghman Province, Afghanistan; Minas Gerais, Brazil; Maharitra, Mt. Bity, and Anjanabonoina, Madagascar. In the USA, giant crystals in the Etta mine, near Keystone, Pennington County, South Dakota,; and from the Pala district, San Diego County, California.