Aventurine

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Physical & Optical Properties

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 Hardness: 7.0 – 6.5
1 Soft10 Hard

Crystal System

a b c Triclinic a ≠ b ≠ c, α ≠ β ≠ γ ≠ 90°

Value & Market

Price Tier Moderate ($50-500/ct)

About Aventurine

Aventurine is a sparkling variety of quartz containing aligned fuchsite mica flakes that produce a glittering, metallic shimmer known as aventurescence, most famously in green but also in reddish brown, blue, and orange varieties. The finest green aventurine comes from India, where it has been carved into beads and figurines for centuries, while blue aventurine from Brazil and reddish specimens from Norway are also well known. It remains one of the most popular and affordable semi-precious gemstones for jewelry and decorative use.

Jewelry Use

Durability 7/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Aventurine?
Aventurine is a sparkling variety of quartz containing aligned fuchsite mica flakes that produce a glittering, metallic shimmer known as aventurescence, most famously in green but also in reddish brown, blue, and orange varieties. The finest green aventurine comes from India, where it has been carve
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.

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