Chrome-Tourmaline
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.0 – 7.5
Specific Gravity
2.85 – 3.35
Refractive Index
1.614 – 1.666
Crystal System
Trigonal
Luster
Vitreous
Color
various
Birefringence
0.014
Pleochroism
Strong: dark green - yellow-green
Mohs Hardness
| Mohs | Reference mineral | Chrome-Tourmaline |
|---|---|---|
| 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 Chrome-Tourmaline
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 Chrome-Tourmaline
クロムトルマリンはクロムにより着色された強烈な緑から黄緑色を示すエルバイトまたはドラバイトのトルマリン変種です。タンザニアやケニアが主要産地で、その鮮やかな色彩はエメラルドやデマントイドガーネットに匹敵するとも言われます。デマントイドに近い彩度を持つ緑色宝石として宝石学者に高く評価されています。
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Chrome-Tourmaline?
クロムトルマリンはクロムにより着色された強烈な緑から黄緑色を示すエルバイトまたはドラバイトのトルマリン変種です。タンザニアやケニアが主要産地で、その鮮やかな色彩はエメラルドやデマントイドガーネットに匹敵するとも言われます。デマントイドに近い彩度を持つ緑色宝石として宝石学者に高く評価されています。
What is the hardness of Chrome-Tourmaline?
Chrome-Tourmaline has a Mohs hardness of 7.0 to 7.5, making it excellent for use in jewelry.
What color is Chrome-Tourmaline?
Chrome-Tourmaline is primarily Various.
How much does Chrome-Tourmaline cost?
Chrome-Tourmaline falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Chrome-Tourmaline?
Chrome-Tourmaline belongs to the Trigonal crystal system.