Anorthite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.0 – 6.5
Specific Gravity
2.77
Refractive Index
1.575 – 1.588
Crystal System
Triclinic
Luster
Vitreous,Dull (Earthy)
Cleavage
Perfect
Fracture
Uneven,Conchoidal
Color
various
Birefringence
0.013
Mohs Hardness
| Mohs | Reference mineral | Anorthite |
|---|---|---|
| 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
Moderate ($50-500/ct)
Where to Buy Anorthite
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 Anorthite
アノーサイトは、変成岩や深成火成岩中に無色から白色の結晶として主に産出する、斜長石系列のカルシウム端成分です。一部の月の岩石の主要構成鉱物であり、宇宙科学において重要な意義を持ちます。宝石用途は極めて限られますが、一部の変種は光沢のある研磨石として利用されることがあります。
On this page
Jewelry Use
Durability
5/10
Science FYI Family
Frequently Asked Questions
What is Anorthite?
アノーサイトは、変成岩や深成火成岩中に無色から白色の結晶として主に産出する、斜長石系列のカルシウム端成分です。一部の月の岩石の主要構成鉱物であり、宇宙科学において重要な意義を持ちます。宝石用途は極めて限られますが、一部の変種は光沢のある研磨石として利用されることがあります。
What is the hardness of Anorthite?
Anorthite has a Mohs hardness of 6.0 to 6.5, making it moderate for use in jewelry.
What color is Anorthite?
Anorthite is primarily Various.
How much does Anorthite cost?
Anorthite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Anorthite?
Anorthite belongs to the Triclinic crystal system.