Sellaite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0 – 5.5
Specific Gravity
3.14 – 3.16
Refractive Index
1.378 – 1.39
Crystal System
Tetragonal
Luster
Vitreous
Cleavage
Distinct
Fracture
Conchoidal
Color
various
Birefringence
0.01
Mohs Hardness
| Mohs | Reference mineral | Sellaite |
|---|---|---|
| 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 Sellaite
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 Sellaite
氟镁石是一种罕见的氟化镁矿物，形成无色至白色的四方柱状晶体，以玻璃光泽著称。作为宝石极为罕见，刻面标本主要供矿物收藏家珍藏。产自意大利、美国和俄罗斯的热液矿脉及接触变质岩中，是矿物学收藏的珍稀品种。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Sellaite?
氟镁石是一种罕见的氟化镁矿物，形成无色至白色的四方柱状晶体，以玻璃光泽著称。作为宝石极为罕见，刻面标本主要供矿物收藏家珍藏。产自意大利、美国和俄罗斯的热液矿脉及接触变质岩中，是矿物学收藏的珍稀品种。
What is the hardness of Sellaite?
Sellaite has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Sellaite?
Sellaite is primarily Various.
How much does Sellaite cost?
Sellaite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Sellaite?
Sellaite belongs to the Tetragonal crystal system.