Actinolite

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Physical & Optical Properties

Mohs Hardness 5.5 – 6.0
Specific Gravity 3.03 – 3.07
Refractive Index 1.6 – 1.63
Crystal System Monoclinic
Luster Vitreous
Cleavage Perfect
Fracture Uneven
Color various
Birefringence 0.03
Pleochroism Distinct: yellow-green - light 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 Actinolite
Mohs hardness of Actinolite shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Actinolite
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 Actinolite

阳起石是角闪石族的钙镁铁硅酸盐矿物,以其丰富的绿色调而闻名。从半透明到不透明,阳起石呈现出从浅绿到深墨绿的广泛色域,其中猫眼效应变种尤为珍贵。这种矿物分布广泛,在变质岩中尤为常见,新西兰的青玉(软玉的一种)正是由阳起石组成。

Science FYI Family

Frequently Asked Questions

What is Actinolite?
阳起石是角闪石族的钙镁铁硅酸盐矿物,以其丰富的绿色调而闻名。从半透明到不透明,阳起石呈现出从浅绿到深墨绿的广泛色域,其中猫眼效应变种尤为珍贵。这种矿物分布广泛,在变质岩中尤为常见,新西兰的青玉(软玉的一种)正是由阳起石组成。
What is the hardness of Actinolite?
Actinolite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Actinolite?
Actinolite is primarily Various.
How much does Actinolite cost?
Actinolite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Actinolite?
Actinolite belongs to the Monoclinic crystal system.

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