Anthophyllite

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Physical & Optical Properties

Mohs Hardness 5.5 – 6.0
Specific Gravity 2.9 – 3.5
Refractive Index 1.603 – 1.69
Crystal System Orthorhombic
Luster Vitreous,Pearly
Cleavage Perfect,Distinct
Color various
Pleochroism When Fe-rich, moderate: clove-brown, yellowish brown, grayish brown - clove-brown, brown-gray, brownish - clove-brown to dark brown, grayish blue to green, lilac.

Mohs Hardness

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

Crystal System

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

Value & Market

Price Tier Budget (< $50/ct)

About Anthophyllite

直闪石是角闪石族的镁铁硅酸盐矿物,呈现出棕色至灰绿色,常具有丝绢光泽。这种矿物以纤维状集合体为主,是一种石棉矿物,但宝石级直闪石以单晶体出现,具有一定的收藏价值。直闪石主要产自芬兰、格陵兰和美国等地的变质岩中。

Science FYI Family

Frequently Asked Questions

What is Anthophyllite?
直闪石是角闪石族的镁铁硅酸盐矿物,呈现出棕色至灰绿色,常具有丝绢光泽。这种矿物以纤维状集合体为主,是一种石棉矿物,但宝石级直闪石以单晶体出现,具有一定的收藏价值。直闪石主要产自芬兰、格陵兰和美国等地的变质岩中。
What is the hardness of Anthophyllite?
Anthophyllite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Anthophyllite?
Anthophyllite is primarily Various.
How much does Anthophyllite cost?
Anthophyllite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Anthophyllite?
Anthophyllite belongs to the Orthorhombic crystal system.

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