Hiddenite

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Physical & Optical Properties

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 Distinct trichroism: yellow green - green - blue green

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Hiddenite
Mohs hardness of Hiddenite shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Hiddenite
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

β a b c Monoclinic a ≠ b ≠ c, α = γ = 90°, β ≠ 90°

Value & Market

Price Tier Moderate ($50-500/ct)

About Hiddenite

希登石是锂辉石的绿色宝石级变体,以其明亮的翠绿色至黄绿色著称,颜色由微量铬元素所致。希登石以其发现者威廉·厄尔·希登的名字命名,最早发现于美国北卡罗来纳州,至今该地仍是最重要的产地。希登石具有强烈的多色性,从不同方向观察可见蓝绿色、黄绿色和近无色三种颜色,切磨方向对最终宝石颜色影响显著,是锂辉石家族中最珍贵的品种之一。

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Frequently Asked Questions

What is Hiddenite?
希登石是锂辉石的绿色宝石级变体,以其明亮的翠绿色至黄绿色著称,颜色由微量铬元素所致。希登石以其发现者威廉·厄尔·希登的名字命名,最早发现于美国北卡罗来纳州,至今该地仍是最重要的产地。希登石具有强烈的多色性,从不同方向观察可见蓝绿色、黄绿色和近无色三种颜色,切磨方向对最终宝石颜色影响显著,是锂辉石家族中最珍贵的品种之一。
What is the hardness of Hiddenite?
Hiddenite has a Mohs hardness of 6.0 to 7.0, making it moderate for use in jewelry.
What color is Hiddenite?
Hiddenite is primarily Various.
How much does Hiddenite cost?
Hiddenite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Hiddenite?
Hiddenite belongs to the Monoclinic crystal system.

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