Boracite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.0 – 7.5
Specific Gravity
2.95 – 2.96
Refractive Index
1.658 – 1.673
Crystal System
Orthorhombic
Cleavage
Poor
Fracture
Conchoidal
Color
various
Birefringence
0.01
Pleochroism
Nil
Mohs Hardness
| Mohs | Reference mineral | Boracite |
|---|---|---|
| 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 Boracite
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 Boracite
硼镁石是一种罕见的镁硼酸盐矿物，通常形成特征性的等轴晶系立方体或八面体晶形，呈白色、灰色或淡绿色。这种矿物在常温下具有压电性，是重要的研究矿物。硼镁石主要产于蒸发岩矿床中，与石膏、石盐共生，德国和英国是重要的历史产地。
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Boracite?
硼镁石是一种罕见的镁硼酸盐矿物，通常形成特征性的等轴晶系立方体或八面体晶形，呈白色、灰色或淡绿色。这种矿物在常温下具有压电性，是重要的研究矿物。硼镁石主要产于蒸发岩矿床中，与石膏、石盐共生，德国和英国是重要的历史产地。
What is the hardness of Boracite?
Boracite has a Mohs hardness of 7.0 to 7.5, making it excellent for use in jewelry.
What color is Boracite?
Boracite is primarily Various.
How much does Boracite cost?
Boracite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Boracite?
Boracite belongs to the Orthorhombic crystal system.