Augite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.0
Specific Gravity
3.19 – 3.56
Refractive Index
1.671 – 1.774
Crystal System
Monoclinic
Luster
Vitreous,Resinous,Dull (Earthy)
Fracture
Uneven,Conchoidal
Color
various
Pleochroism
Pale green, pale brown, green, greenish yellow - pale brown, pale yellow-green, violet - pale green, grayish green, violet.
Mohs Hardness
| Mohs | Reference mineral | Augite |
|---|---|---|
| 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 Augite
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 Augite
オーガイトは玄武岩・安山岩などの塩基性火成岩に最も豊富に産する造岩鉱物の一つである、暗緑色から黒色のカルシウムマグネシウム鉄輝石です。宝石用途は極めて限られますが、黒い金属光沢の標本は矿物コレクションで人気を集めます。地球の地殻とマントルを構成する重要鉱物として地質学的意義が高い鉱物です。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Augite?
オーガイトは玄武岩・安山岩などの塩基性火成岩に最も豊富に産する造岩鉱物の一つである、暗緑色から黒色のカルシウムマグネシウム鉄輝石です。宝石用途は極めて限られますが、黒い金属光沢の標本は矿物コレクションで人気を集めます。地球の地殻とマントルを構成する重要鉱物として地質学的意義が高い鉱物です。
What is the hardness of Augite?
Augite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Augite?
Augite is primarily Various.
How much does Augite cost?
Augite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Augite?
Augite belongs to the Monoclinic crystal system.