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
ベルトランダイトは、ベリリウム鉱床中に小さな板状結晶を形成する無色から淡黄色のベリリウムケイ酸塩鉱物です。工業的にはベリリウム抽出の重要な鉱石鉱物として利用されますが、宝石用の透明結晶は極めて稀で、主に専門標本コレクターの対象となっています。
On this page
Jewelry Use
Durability
5/10
Science FYI Family
Frequently Asked Questions
What is Bertrandite?
ベルトランダイトは、ベリリウム鉱床中に小さな板状結晶を形成する無色から淡黄色のベリリウムケイ酸塩鉱物です。工業的にはベリリウム抽出の重要な鉱石鉱物として利用されますが、宝石用の透明結晶は極めて稀で、主に専門標本コレクターの対象となっています。
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.