Kunzite
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Pink to violet and strongly pleochroic, kunzite is the manganese-colored variety of spodumene, a lithium aluminum silicate that shows pale pink, deeper pink-violet, and colorless faces when turned in the light. It was first described in 1902 from Pala, California, and named for the gemologist George Frederick Kunz of Tiffany & Co.; the finest crystals come from Afghanistan, Brazil's Minas Gerais, Madagascar, and Pakistan. Crystallizing in the monoclinic system, it measures 6.0 to 7.0 on the Mohs scale. Favored as a moderately priced semi-precious stone for its delicate pink and lavender tones, kunzite can nonetheless fade under prolonged ultraviolet exposure.
Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6,0 – 7,0
Specific Gravity
3,15 – 3,21
Refractive Index
1,657 – 1,681
Crystal System
Monoclinic
Luster
Vitreous
Cleavage
Perfect
Fracture
Uneven
Color
various
Birefringence
0,014
Dispersion
0,017
Pleochroism
Strong trichroism: colorless - pink - violet
Mohs Hardness
| Mohs | Reference mineral | Kunzite |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | ● |
| 7 | Quartz | ● |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Price Tier
Moderate ($50-500/ct)
Where to Buy Kunzite
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
Treatments
6 to 7Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
3.15 to 3.21Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
BrittleWalter Schumann, Gemstones of the world (2001)
PerfectUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
UnevenWalter Schumann, Gemstones of the world (2001)
1.657 to 1.681Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Biaxial/+Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
0.014 to 0.016Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Strong trichroism: colorless - pink - violetHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
0.017Walter Schumann, Gemstones of the world (2001)
Pink, violet-pinkUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Coloring agent is manganese.Walter Schumann, Gemstones of the world (2001)
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
VitreousWalter Schumann, Gemstones of the world (2001) Vivid vitreous
Moderate to strong pink to orange (weaker to SW)Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
OrangeUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
OrangeUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
MonoclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Prismatic, tabularWalter Schumann, Gemstones of the world (2001)
Deposits occur in granite pegmatite.Walter Schumann, Gemstones of the world (2001)
There are frequently aligned inclusions such as tubes or fractures. - Gemstones of the world, Walter Schumann, 2001, p 114
Kunzite information at mindat.org
Afghanistan
E.Ya. Kievlenko, Geology of gems, 2003, p. 110
Bowersox and Chamberlin (1995)
Bowersox and Chamberlin (1995)
Bowersox and Chamberlin (1995)
Bowersox and Chamberlin (1995)
Brazil
Proctor (1985)
Proctor (1985)
Proctor (1985)
MadagascarE.Ya. Kievlenko, Geology of gems, 2003, p. 110
Sri Lanka
Ceylon Aluvial Mine, (Book, Co. 2002)
USA
Sinkankas (1997)
About Kunzite
A kunzite é a variedade rosa a lilás do espodumeno, com uma cor delicada que varia do rosa-pálido ao violeta profundo, devida ao manganês. O nome homenageia o gemologista George Frederick Kunz. A kunzite exibe pleocroismo forte, mostrando intensidades de cor diferentes em diferentes direções. O Afeganistão, o Brasil e os EUA (Califórnia) são fontes importantes. A kunzite de alta qualidade pode ser uma pedra preciosa elegante e atraente, embora seja sensível à luz solar prolongada que pode desvanecer a cor.
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Frequently Asked Questions
What is Kunzite?
A kunzite é a variedade rosa a lilás do espodumeno, com uma cor delicada que varia do rosa-pálido ao violeta profundo, devida ao manganês. O nome homenageia o gemologista George Frederick Kunz. A kunzite exibe pleocroismo forte, mostrando intensidades de cor diferentes em diferentes direções. O Afeg
What is the hardness of Kunzite?
Kunzite has a Mohs hardness of 6.0 to 7.0, making it moderate for use in jewelry.
What color is Kunzite?
Kunzite is primarily Various.
Where is Kunzite found?
Kunzite is found in Minas Gerais (Brazil).
How much does Kunzite cost?
Kunzite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.