Crystal Opal
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.5
Specific Gravity
1.97 – 2.22
Crystal System
Amorphous
Luster
Vitreous
Cleavage
None
Fracture
Conchoidal
Color
white
Pleochroism
Absent
Mohs Hardness
| Mohs | Reference mineral | Crystal Opal |
|---|---|---|
| 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 Crystal Opal
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 Crystal Opal
晶质蛋白石是蛋白石中品质最高的种类之一，以其高度透明或半透明的体色和绚丽的变彩效果著称。晶质一词专指其透明度，使内部的游彩得以充分展现，在光线下呈现出红、橙、绿、蓝等全光谱色彩的流动闪光。产自澳大利亚的晶质蛋白石品质尤为卓越，是宝石市场上极受欢迎的高档宝石品种。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Crystal Opal?
晶质蛋白石是蛋白石中品质最高的种类之一，以其高度透明或半透明的体色和绚丽的变彩效果著称。晶质一词专指其透明度，使内部的游彩得以充分展现，在光线下呈现出红、橙、绿、蓝等全光谱色彩的流动闪光。产自澳大利亚的晶质蛋白石品质尤为卓越，是宝石市场上极受欢迎的高档宝石品种。
What is the hardness of Crystal Opal?
Crystal Opal has a Mohs hardness of 5.5 to 6.5, making it moderate for use in jewelry.
What color is Crystal Opal?
Crystal Opal is primarily White.
How much does Crystal Opal cost?
Crystal Opal falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Crystal Opal?
Crystal Opal belongs to the Amorphous crystal system.