Dallasite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.5 – 7.0
Specific Gravity
2.58 – 2.91
Refractive Index
1.54
Crystal System
Trigonal
Color
various
Birefringence
0.008
Mohs Hardness
| Mohs | Reference mineral | Dallasite |
|---|---|---|
| 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 Dallasite
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 Dallasite
ダラサイトは、カナダのブリティッシュコロンビア州ダラス地域で発見された珪質の岩石質宝石です。緑色のクロム含有物質と白色のカルセドニー（玉髄）が混合した独特の模様が特徴で、装飾石として使用されます。地域固有の珍しい宝石として、地元では人気があります。
On this page
Jewelry Use
Durability
6/10
Science FYI Family
Frequently Asked Questions
What is Dallasite?
ダラサイトは、カナダのブリティッシュコロンビア州ダラス地域で発見された珪質の岩石質宝石です。緑色のクロム含有物質と白色のカルセドニー（玉髄）が混合した独特の模様が特徴で、装飾石として使用されます。地域固有の珍しい宝石として、地元では人気があります。
What is the hardness of Dallasite?
Dallasite has a Mohs hardness of 6.5 to 7.0, making it moderate for use in jewelry.
What color is Dallasite?
Dallasite is primarily Various.
How much does Dallasite cost?
Dallasite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Dallasite?
Dallasite belongs to the Trigonal crystal system.