Forsterite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.5 – 7.0
Specific Gravity
3.23 – 3.26
Refractive Index
1.635 – 1.671
Crystal System
Orthorhombic
Cleavage
Imperfect
Fracture
Conchoidal
Color
various
Birefringence
0.034
Pleochroism
tanzanite
Fluorescence
tanzanite
Mohs Hardness
| Mohs | Reference mineral | Forsterite |
|---|---|---|
| 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 Forsterite
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 Forsterite
镁橄榄石是橄榄石矿物系列中富含镁的端元，也是宝石级橄榄石的主要成分。颜色从淡黄绿色至橄榄绿色不等，透明度高，具有玻璃光泽，切磨后光彩迷人。镁橄榄石广泛分布于基性和超基性岩石中，以巴基斯坦、缅甸、坦桑尼亚、美国和中国等地产量较为丰富。宝石级镁橄榄石是八月的生辰石，象征幸运与财富。
On this page
Jewelry Use
Durability
6/10
Science FYI Family
Frequently Asked Questions
What is Forsterite?
镁橄榄石是橄榄石矿物系列中富含镁的端元，也是宝石级橄榄石的主要成分。颜色从淡黄绿色至橄榄绿色不等，透明度高，具有玻璃光泽，切磨后光彩迷人。镁橄榄石广泛分布于基性和超基性岩石中，以巴基斯坦、缅甸、坦桑尼亚、美国和中国等地产量较为丰富。宝石级镁橄榄石是八月的生辰石，象征幸运与财富。
What is the hardness of Forsterite?
Forsterite has a Mohs hardness of 6.5 to 7.0, making it moderate for use in jewelry.
What color is Forsterite?
Forsterite is primarily Various.
How much does Forsterite cost?
Forsterite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Forsterite?
Forsterite belongs to the Orthorhombic crystal system.