Cryolite
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Physical & Optical Properties
Category
Collector Gems
Mohs Hardness
2.5
Specific Gravity
2.97
Refractive Index
1.338 – 1.339
Crystal System
Monoclinic
Color
various
Birefringence
0.001
Mohs Hardness
| Mohs | Reference mineral | Cryolite |
|---|---|---|
| 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 Cryolite
Links may earn a commission at no extra cost to you.
About Cryolite
冰晶石是一种罕见的钠铝氟化物矿物，因其折射率与水相近而拥有独特的光学特性——将其浸入水中几乎会变得透明不可见。天然冰晶石几乎仅产于格陵兰岛，呈白色至无色，具有玻璃光泽。历史上曾大量用于铝的冶炼，如今天然矿床几近枯竭，主要通过人工合成方式生产，是矿物收藏界的珍贵品种。
On this page
Jewelry Use
Durability
1/10
Science FYI Family
Frequently Asked Questions
What is Cryolite?
冰晶石是一种罕见的钠铝氟化物矿物，因其折射率与水相近而拥有独特的光学特性——将其浸入水中几乎会变得透明不可见。天然冰晶石几乎仅产于格陵兰岛，呈白色至无色，具有玻璃光泽。历史上曾大量用于铝的冶炼，如今天然矿床几近枯竭，主要通过人工合成方式生产，是矿物收藏界的珍贵品种。
What is the hardness of Cryolite?
Cryolite has a Mohs hardness of 2.5, making it relatively soft for use in jewelry.
What color is Cryolite?
Cryolite is primarily Various.
How much does Cryolite cost?
Cryolite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Cryolite?
Cryolite belongs to the Monoclinic crystal system.