Kornerupine
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.5
Specific Gravity
3.25 – 3.45
Refractive Index
1.66 – 1.685
Crystal System
Orthorhombic
Luster
Vitreous
Cleavage
Good
Fracture
Conchoidal
Color
various
Birefringence
0.012
Dispersion
0.018
Pleochroism
Strong trichroism is common for green variety: green - yellow - reddish brown
Mohs Hardness
| Mohs | Reference mineral | Kornerupine |
|---|---|---|
| 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 Kornerupine
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.
About Kornerupine
科涅卢平石（柯纳鲁宾石）是一种含镁铝硼的硅酸盐矿物，以其独特的绿色至棕绿色著称，颜色如茶绿或橄榄绿，部分标本还具有多色性。科涅卢平石主要产于斯里兰卡、缅甸、肯尼亚和马达加斯加的变质岩中，产量较为稀少。宝石级科涅卢平石颜色清澈，切磨后光泽迷人，因其独特的颜色和较高的稀缺性，深受宝石收藏家的关注。
On this page
Jewelry Use
Durability
6/10
Science FYI Family
Frequently Asked Questions
What is Kornerupine?
科涅卢平石（柯纳鲁宾石）是一种含镁铝硼的硅酸盐矿物，以其独特的绿色至棕绿色著称，颜色如茶绿或橄榄绿，部分标本还具有多色性。科涅卢平石主要产于斯里兰卡、缅甸、肯尼亚和马达加斯加的变质岩中，产量较为稀少。宝石级科涅卢平石颜色清澈，切磨后光泽迷人，因其独特的颜色和较高的稀缺性，深受宝石收藏家的关注。
What is the hardness of Kornerupine?
Kornerupine has a Mohs hardness of 6.5, making it moderate for use in jewelry.
What color is Kornerupine?
Kornerupine is primarily Various.
How much does Kornerupine cost?
Kornerupine falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Kornerupine?
Kornerupine belongs to the Orthorhombic crystal system.