Bertrandite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.0 – 7.0
Specific Gravity
2.59 – 2.6
Refractive Index
1.583 – 1.614
Crystal System
Orthorhombic
Luster
Vitreous,Pearly
Cleavage
Perfect,Distinct
Color
various
Mohs Hardness
| Mohs | Reference mineral | Bertrandite |
|---|---|---|
| 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
Moderate ($50-500/ct)
Where to Buy Bertrandite
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 Bertrandite
羟硅铍石是一种含铍的硅酸盐矿物，通常形成无色至淡黄色的板状晶体，在铍矿床中常与绿柱石共生。美国犹他州的绿松石矿脉中含有大量羟硅铍石，是目前商业开采铍的重要来源。宝石级羟硅铍石极为稀少，主要作为矿物标本供研究和收藏。
On this page
Jewelry Use
Durability
5/10
Science FYI Family
Frequently Asked Questions
What is Bertrandite?
羟硅铍石是一种含铍的硅酸盐矿物，通常形成无色至淡黄色的板状晶体，在铍矿床中常与绿柱石共生。美国犹他州的绿松石矿脉中含有大量羟硅铍石，是目前商业开采铍的重要来源。宝石级羟硅铍石极为稀少，主要作为矿物标本供研究和收藏。
What is the hardness of Bertrandite?
Bertrandite has a Mohs hardness of 6.0 to 7.0, making it moderate for use in jewelry.
What color is Bertrandite?
Bertrandite is primarily Various.
How much does Bertrandite cost?
Bertrandite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Bertrandite?
Bertrandite belongs to the Orthorhombic crystal system.