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
Prase is a leek-green variety of quartz whose color is imparted by inclusions of actinolite or chlorite fibers distributed throughout the stone. Known since antiquity, it was used in ancient Greece and Rome for carving intaglios and decorative objects, and is found in Greece, Finland, and South Africa. Its opaque to translucent nature and earthy green hue give it a distinctive character among quartz varieties.
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Prase?
Prase is a leek-green variety of quartz whose color is imparted by inclusions of actinolite or chlorite fibers distributed throughout the stone. Known since antiquity, it was used in ancient Greece and Rome for carving intaglios and decorative objects, and is found in Greece, Finland, and South Afri
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.