Dioptase
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0
Specific Gravity
3.25 – 3.35
Refractive Index
1.644 – 1.72
Crystal System
Trigonal
Luster
Vitreous
Fracture
Conchoidal
Color
various
Birefringence
0.051
Dispersion
0.036
Pleochroism
Weak; dark emerald green, light emerald green.
Mohs Hardness
| Mohs | Reference mineral | Dioptase |
|---|---|---|
| 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 Dioptase
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 Dioptase
ダイオプテーズは、ケイ酸銅水和物鉱物（CuSiO₃·H₂O）で、エメラルドを凌ぐほどの鮮やかな緑色を示します。カザフスタンやコンゴ民主共和国が主要産地です。モース硬度5と比較的柔らかく、劈開も完全なため宝飾加工には不向きですが、その濃く輝く緑色は希少な標本として高く評価されています。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Dioptase?
ダイオプテーズは、ケイ酸銅水和物鉱物（CuSiO₃·H₂O）で、エメラルドを凌ぐほどの鮮やかな緑色を示します。カザフスタンやコンゴ民主共和国が主要産地です。モース硬度5と比較的柔らかく、劈開も完全なため宝飾加工には不向きですが、その濃く輝く緑色は希少な標本として高く評価されています。
What is the hardness of Dioptase?
Dioptase has a Mohs hardness of 5.0, making it moderate for use in jewelry.
What color is Dioptase?
Dioptase is primarily Various.
How much does Dioptase cost?
Dioptase falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Dioptase?
Dioptase belongs to the Trigonal crystal system.