Tremolite

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Physical & Optical Properties

Mohs Hardness 5.0 – 6.0
Specific Gravity 2.95 – 3.07
Refractive Index 1.599 – 1.637
Crystal System Monoclinic
Luster Vitreous,Silky
Cleavage Distinct
Fracture Uneven
Color various
Birefringence 0.023
Pleochroism Nil

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Tremolite
Mohs hardness of Tremolite shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Tremolite
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 Budget (< $50/ct)

About Tremolite

トレモライトはカルシウム‐マグネシウムケイ酸塩の角閃石鉱物で、無色から白色・薄灰色・淡緑色、稀にクロムを含む鮮やかな緑色(クロムトレモライト)まで様々な色を示します。変成岩中に柱状から繊維状の集合体として産出します。注意すべき点として、繊維状のアスベスト性変種は有害ですが、塊状または柱状結晶の宝石品質のものは安全に取り扱えます。カシミール産の美しい淡青緑色の宝石品質標本は稀少コレクター品です。

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Frequently Asked Questions

What is Tremolite?
トレモライトはカルシウム‐マグネシウムケイ酸塩の角閃石鉱物で、無色から白色・薄灰色・淡緑色、稀にクロムを含む鮮やかな緑色(クロムトレモライト)まで様々な色を示します。変成岩中に柱状から繊維状の集合体として産出します。注意すべき点として、繊維状のアスベスト性変種は有害ですが、塊状または柱状結晶の宝石品質のものは安全に取り扱えます。カシミール産の美しい淡青緑色の宝石品質標本は稀少コレクター品です。
What is the hardness of Tremolite?
Tremolite has a Mohs hardness of 5.0 to 6.0, making it moderate for use in jewelry.
What color is Tremolite?
Tremolite is primarily Various.
How much does Tremolite cost?
Tremolite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Tremolite?
Tremolite belongs to the Monoclinic crystal system.

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