Aventurine
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Distinguished by a glittering metallic shimmer called aventurescence, aventurine is a variety of quartz whose sparkle comes from aligned flakes of fuchsite mica. It appears most famously in green but also in reddish brown, blue, and orange, and it registers roughly 6.5 to 7.0 on the Mohs scale. The finest green material comes from India, where it has been carved into beads and figurines for centuries, while blue aventurine is drawn from Brazil and reddish specimens from Norway. Affordable, durable, and moderately priced, it remains one of the most widely used semi-precious stones for jewelry and decorative carving.
Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.0 – 6.5
Specific Gravity
2.64 – 2.69
Refractive Index
1.544 – 1.553
Crystal System
Triclinic
Cleavage
None
Fracture
Conchoidal,Splintery
Color
various
Birefringence
0.007
Pleochroism
Absent
Mohs Hardness
| Mohs | Reference mineral | Aventurine |
|---|---|---|
| 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 Aventurine
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 Aventurine
アベンチュリンは、整列したフックサイト雲母のフレークが金属的なきらめきを生む石英の変種で、アベンチュレッセンスと呼ばれる光学現象が特徴です。緑色が最も一般的ですが、赤・橙・青・白色の変種も存在します。インドが最大の産地で、ビーズ・カボション・彫刻素材として広く利用されています。
Compare With
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Aventurine?
アベンチュリンは、整列したフックサイト雲母のフレークが金属的なきらめきを生む石英の変種で、アベンチュレッセンスと呼ばれる光学現象が特徴です。緑色が最も一般的ですが、赤・橙・青・白色の変種も存在します。インドが最大の産地で、ビーズ・カボション・彫刻素材として広く利用されています。
What is the hardness of Aventurine?
Aventurine has a Mohs hardness of 7.0 to 6.5, making it excellent for use in jewelry.
What color is Aventurine?
Aventurine is primarily Various.
How much does Aventurine cost?
Aventurine falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Aventurine?
Aventurine belongs to the Triclinic crystal system.