Anhydrite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
3.5
Specific Gravity
2.9 – 2.98
Refractive Index
1.57 – 1.614
Crystal System
Orthorhombic
Luster
Vitreous
Cleavage
Perfect
Fracture
Uneven
Color
various
Birefringence
0.044
Dispersion
0.013
Pleochroism
Weak
Mohs Hardness
| Mohs | Reference mineral | Anhydrite |
|---|---|---|
| 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 Anhydrite
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 Anhydrite
경석고(硬石膏, 안히드라이트)는 수분을 함유하지 않은 황산칼슘 광물로, 석고의 무수화물입니다. 청색, 회색, 자주색, 무색 등 다양한 색상을 보이며, 보라색 변종은 '볼라이트(Violite)'라고도 불립니다. 증발암 퇴적층에서 흔히 발견되며, 석고로 변질되어 부피가 팽창하면 암반에 상당한 압력을 가하기도 합니다.
On this page
Jewelry Use
Durability
2/10
Science FYI Family
Frequently Asked Questions
What is Anhydrite?
경석고(硬石膏, 안히드라이트)는 수분을 함유하지 않은 황산칼슘 광물로, 석고의 무수화물입니다. 청색, 회색, 자주색, 무색 등 다양한 색상을 보이며, 보라색 변종은 '볼라이트(Violite)'라고도 불립니다. 증발암 퇴적층에서 흔히 발견되며, 석고로 변질되어 부피가 팽창하면 암반에 상당한 압력을 가하기도 합니다.
What is the hardness of Anhydrite?
Anhydrite has a Mohs hardness of 3.5, making it relatively soft for use in jewelry.
What color is Anhydrite?
Anhydrite is primarily Various.
How much does Anhydrite cost?
Anhydrite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Anhydrite?
Anhydrite belongs to the Orthorhombic crystal system.