Brookite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.0
Specific Gravity
3.87 – 4.14
Refractive Index
2.583 – 2.741
Crystal System
Orthorhombic
Cleavage
Indistinct
Fracture
Sub-Conchoidal
Color
various
Birefringence
0.117
Pleochroism
Nil
Mohs Hardness
| Mohs | Reference mineral | Brookite |
|---|---|---|
| 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 Brookite
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 Brookite
板钛矿是二氧化钛的三种多形体之一（另两种为锐钛矿和金红石），以英国矿物学家亨利·詹姆斯·布鲁克命名。这种矿物形成特征的板状至厚板状晶体，颜色从黄褐色到红棕色至黑色不等，具有金刚光泽。板钛矿折射率极高，宝石切割后极为稀有珍贵，是资深矿物收藏家的珍藏品。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Brookite?
板钛矿是二氧化钛的三种多形体之一（另两种为锐钛矿和金红石），以英国矿物学家亨利·詹姆斯·布鲁克命名。这种矿物形成特征的板状至厚板状晶体，颜色从黄褐色到红棕色至黑色不等，具有金刚光泽。板钛矿折射率极高，宝石切割后极为稀有珍贵，是资深矿物收藏家的珍藏品。
What is the hardness of Brookite?
Brookite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Brookite?
Brookite is primarily Various.
How much does Brookite cost?
Brookite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Brookite?
Brookite belongs to the Orthorhombic crystal system.