Willemite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5
Specific Gravity
3.89 – 4.18
Refractive Index
1.687 – 1.723
Crystal System
Trigonal
Luster
Resinous
Cleavage
Distinct
Fracture
Sub-Conchoidal
Color
various
Birefringence
0.028
Pleochroism
Nil
Mohs Hardness
| Mohs | Reference mineral | Willemite |
|---|---|---|
| 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 Willemite
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 Willemite
硅锌矿是一种锌硅酸盐矿物,以其在短波紫外线下极为强烈的黄绿色荧光著称——这种荧光是所有矿物中最鲜艳的之一,宝石级标本折射率高,能产生良好的光泽。产自美国新泽西州富兰克林矿区(经典产地)和纳米比亚,颜色从无色、淡黄色至绿色不等,是荧光矿物收藏中的标志性品种。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Willemite?
硅锌矿是一种锌硅酸盐矿物,以其在短波紫外线下极为强烈的黄绿色荧光著称——这种荧光是所有矿物中最鲜艳的之一,宝石级标本折射率高,能产生良好的光泽。产自美国新泽西州富兰克林矿区(经典产地)和纳米比亚,颜色从无色、淡黄色至绿色不等,是荧光矿物收藏中的标志性品种。
What is the hardness of Willemite?
Willemite has a Mohs hardness of 5.5, making it moderate for use in jewelry.
What color is Willemite?
Willemite is primarily Various.
How much does Willemite cost?
Willemite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Willemite?
Willemite belongs to the Trigonal crystal system.