Chlorastrolite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0 – 6.0
Specific Gravity
3.1 – 3.5
Refractive Index
1.7
Crystal System
Orthorhombic
Luster
Silky,Pearly
Cleavage
None
Fracture
Splintery
Color
various
Birefringence
0.01
Pleochroism
Nil
Mohs Hardness
| Mohs | Reference mineral | Chlorastrolite |
|---|---|---|
| 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 Chlorastrolite
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 Chlorastrolite
クロラストロライトは「アイル・ロワイヤル・グリーンストーン」として知られ、亀甲模様（タートル模様）のキャッツアイ光沢を示す稀少な緑色パンペリアイト鉱物です。ミシガン州の州宝石に指定されており、スペリオル湖のアイル・ロワイヤル島周辺でのみ産出します。その独特の亀甲模様と光沢は他に類を見ない宝石です。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Chlorastrolite?
クロラストロライトは「アイル・ロワイヤル・グリーンストーン」として知られ、亀甲模様（タートル模様）のキャッツアイ光沢を示す稀少な緑色パンペリアイト鉱物です。ミシガン州の州宝石に指定されており、スペリオル湖のアイル・ロワイヤル島周辺でのみ産出します。その独特の亀甲模様と光沢は他に類を見ない宝石です。
What is the hardness of Chlorastrolite?
Chlorastrolite has a Mohs hardness of 5.0 to 6.0, making it moderate for use in jewelry.
What color is Chlorastrolite?
Chlorastrolite is primarily Various.
How much does Chlorastrolite cost?
Chlorastrolite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Chlorastrolite?
Chlorastrolite belongs to the Orthorhombic crystal system.