Beryl

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Physical & Optical Properties

Mohs Hardness 7.5 – 8.0
Specific Gravity 2.6 – 2.9
Refractive Index 1.56 – 1.604
Crystal System Hexagonal
Luster Vitreous
Cleavage Indistinct
Fracture Uneven,Conchoidal
Color various
Birefringence 0.003
Dispersion 0.014
Pleochroism Red beryl - distinct: (orangy)-red - purplish-red; Golden beryl - weak: yellowish - greenish-yellow; Green beryl - distinct: yellow-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 Beryl
Mohs hardness of Beryl shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Beryl
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

a a c Hexagonal a = b ≠ c, α = β = 90°, γ = 120°

Value & Market

Price Tier Moderate ($50-500/ct)

About Beryl

绿柱石是一个重要的宝石矿物家族,孕育了多种世界顶级宝石:翠绿的祖母绿、天蓝的海蓝宝石、粉红的摩根石、金黄的金色绿柱石以及无色的戈舍耐特。这种铍铝硅酸盐矿物以其出色的透明度、丰富的色彩变化和较高的硬度(莫氏7.5-8)而广受珍视。不同的致色元素赋予了各品种截然不同的美丽色彩。

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Jewelry Use

Durability 8/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Beryl?
绿柱石是一个重要的宝石矿物家族,孕育了多种世界顶级宝石:翠绿的祖母绿、天蓝的海蓝宝石、粉红的摩根石、金黄的金色绿柱石以及无色的戈舍耐特。这种铍铝硅酸盐矿物以其出色的透明度、丰富的色彩变化和较高的硬度(莫氏7.5-8)而广受珍视。不同的致色元素赋予了各品种截然不同的美丽色彩。
What is the hardness of Beryl?
Beryl has a Mohs hardness of 7.5 to 8.0, making it excellent for use in jewelry.
What color is Beryl?
Beryl is primarily Various.
How much does Beryl cost?
Beryl falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Beryl?
Beryl belongs to the Hexagonal crystal system.

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