Prase
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.0
Specific Gravity
2.64 – 2.69
Refractive Index
1.544 – 1.553
Crystal System
Trigonal
Luster
Vitreous
Cleavage
None
Fracture
Conchoidal
Color
various
Birefringence
0.009
Mohs Hardness
| Mohs | Reference mineral | Prase |
|---|---|---|
| 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 Prase
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 Prase
绿髓（绿石英）是一种暗绿色的细粒石英变种，其绿色由内含的阳起石或钙铁辉石等绿色矿物针状包裹体所致，并非来自固溶的微量元素。绿髓与绿玉髓（由镍着色）不同，外观更深、更暗，带有轻微的灰绿色调。自古希腊罗马时代，绿髓便被用于制作印章、护身符和装饰品，在古代中东和地中海地区颇为流行。现代宝石市场上绿髓较为少见，主要以弧面形宝石和装饰性雕件的形式出现，德国、芬兰和南非是主要产地。
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Prase?
绿髓（绿石英）是一种暗绿色的细粒石英变种，其绿色由内含的阳起石或钙铁辉石等绿色矿物针状包裹体所致，并非来自固溶的微量元素。绿髓与绿玉髓（由镍着色）不同，外观更深、更暗，带有轻微的灰绿色调。自古希腊罗马时代，绿髓便被用于制作印章、护身符和装饰品，在古代中东和地中海地区颇为流行。现代宝石市场上绿髓较为少见，主要以弧面形宝石和装饰性雕件的形式出现，德国、芬兰和南非是主要产地。
What is the hardness of Prase?
Prase has a Mohs hardness of 7.0, making it excellent for use in jewelry.
What color is Prase?
Prase is primarily Various.
How much does Prase cost?
Prase falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Prase?
Prase belongs to the Trigonal crystal system.