Chrysoberyl

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Physical & Optical Properties

Mohs Hardness 8.5
Specific Gravity 3.69 – 3.81
Refractive Index 1.746 – 1.763
Crystal System Orthorhombic
Cleavage Good
Fracture Uneven,Conchoidal
Color various
Birefringence 0.007
Dispersion 0.015
Pleochroism Yellow - weak: colorless - light yellow - yellow-(green); Green - weak: yellowish - olive-yellow - (colorless)

Mohs Hardness

Mohs Hardness: 8.5
1 Soft10 Hard

Crystal System

a b c Orthorhombic a ≠ b ≠ c, α = β = γ = 90°

Value & Market

Price Tier Fine ($500-5,000/ct)

About Chrysoberyl

Chrysoberyl is a beryllium aluminum oxide gem mineral family that includes three exceptional varieties: alexandrite (the color-change variety), cat's eye chrysoberyl (the finest chatoyant gem), and yellow-green chrysoberyl used in jewelry. Its hardness of 8.5 on the Mohs scale makes it the third hardest natural gemstone after diamond and corundum, and its durability, combined with the phenomenal alexandrite and chatoyant varieties, gives it immense gemological significance. Major sources include Brazil, Sri Lanka, and East Africa.

Jewelry Use

Durability 9/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Chrysoberyl?
Chrysoberyl is a beryllium aluminum oxide gem mineral family that includes three exceptional varieties: alexandrite (the color-change variety), cat's eye chrysoberyl (the finest chatoyant gem), and yellow-green chrysoberyl used in jewelry. Its hardness of 8.5 on the Mohs scale makes it the third har
What is the hardness of Chrysoberyl?
Chrysoberyl has a Mohs hardness of 8.5, making it excellent for use in jewelry.
What color is Chrysoberyl?
Chrysoberyl is primarily Various.
How much does Chrysoberyl cost?
Chrysoberyl falls into the Fine ($500-5,000/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Chrysoberyl?
Chrysoberyl belongs to the Orthorhombic crystal system.

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