Prasiolite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.0
Specific Gravity
2.65
Refractive Index
1.544 – 1.553
Crystal System
Trigonal
Cleavage
None
Fracture
Conchoidal
Color
various
Birefringence
0.009
Dispersion
0.013
Pleochroism
Very weak: light green - pale green
Mohs Hardness
| Mohs | Reference mineral | Prasiolite |
|---|---|---|
| 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 Prasiolite
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 Prasiolite
プラシオライト（緑水晶、グリーンアメシスト）は、加熱処理されたアメシストや黄水晶から得られる淡いリーキーグリーンの石英変種で、自然産のものは極めて稀少です。天然産地はブラジルのモンテズーマとポーランドの一産地に限られます。半透明の緑色と大粒の切り石が得やすいことから、高価なグリーンストーンの代替として装飾的人気を誇るファッションジュエリー素材となっています。
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Prasiolite?
プラシオライト（緑水晶、グリーンアメシスト）は、加熱処理されたアメシストや黄水晶から得られる淡いリーキーグリーンの石英変種で、自然産のものは極めて稀少です。天然産地はブラジルのモンテズーマとポーランドの一産地に限られます。半透明の緑色と大粒の切り石が得やすいことから、高価なグリーンストーンの代替として装飾的人気を誇るファッションジュエリー素材となっています。
What is the hardness of Prasiolite?
Prasiolite has a Mohs hardness of 7.0, making it excellent for use in jewelry.
What color is Prasiolite?
Prasiolite is primarily Various.
How much does Prasiolite cost?
Prasiolite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Prasiolite?
Prasiolite belongs to the Trigonal crystal system.