Actinolite
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Physical & Optical Properties
Category
Semi-Precious Gems
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
| 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
Value & Market
Price Tier
Budget (< $50/ct)
Where to Buy Actinolite
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
About Actinolite
アクチノライトは、変成岩中に細長い刃状の結晶を形成する、暗緑色から黒色の角閃石鉱物です。繊維状の変種はネフライト翡翠の構成成分となり、繊維が細かく束状に配列したものはキャッツアイ効果を示します。アルプスや東アジアの変成帯に広く分布しています。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Actinolite?
アクチノライトは、変成岩中に細長い刃状の結晶を形成する、暗緑色から黒色の角閃石鉱物です。繊維状の変種はネフライト翡翠の構成成分となり、繊維が細かく束状に配列したものはキャッツアイ効果を示します。アルプスや東アジアの変成帯に広く分布しています。
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.