Hibonite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.5 – 8.0
Specific Gravity
3.84
Refractive Index
1.79 – 1.807
Crystal System
Hexagonal
Luster
Vitreous
Cleavage
Good
Fracture
Sub-Conchoidal
Color
various
Pleochroism
Brownish gray - gray
Mohs Hardness
| Mohs | Reference mineral | Hibonite |
|---|---|---|
| 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 Hibonite
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 Hibonite
赤铝石是一种罕见的钙铝氧化物矿物，通常呈深棕色至黑色，偶尔也可呈蓝色或蓝灰色。赤铝石因在陨石中的存在而在地球化学研究中具有重要意义，被认为是太阳系早期形成的矿物之一。宝石级赤铝石极为罕见，主要产于马达加斯加，呈六方柱状晶体，蓝色品种在宝石收藏界备受珍视。
On this page
Jewelry Use
Durability
8/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Hibonite?
赤铝石是一种罕见的钙铝氧化物矿物，通常呈深棕色至黑色，偶尔也可呈蓝色或蓝灰色。赤铝石因在陨石中的存在而在地球化学研究中具有重要意义，被认为是太阳系早期形成的矿物之一。宝石级赤铝石极为罕见，主要产于马达加斯加，呈六方柱状晶体，蓝色品种在宝石收藏界备受珍视。
What is the hardness of Hibonite?
Hibonite has a Mohs hardness of 7.5 to 8.0, making it excellent for use in jewelry.
What color is Hibonite?
Hibonite is primarily Various.
How much does Hibonite cost?
Hibonite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Hibonite?
Hibonite belongs to the Hexagonal crystal system.