Chrysoberyl
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A beryllium aluminum oxide, chrysoberyl is prized as much for its family of varieties as for the stone itself, encompassing alexandrite, the color-change form, and cat's-eye chrysoberyl, the finest of all chatoyant gems, alongside transparent yellow-green material. Its hardness of 8.5 on the Mohs scale makes it the third-hardest natural gem after diamond and corundum, lending it excellent durability. It crystallizes in the orthorhombic system, and major sources include Brazil, Sri Lanka, and East Africa. That combination of hardness with its phenomenal alexandrite and chatoyant forms gives this fine-tier semi-precious species considerable gemological importance.
Physical & Optical Properties
Category
Semi-Precious Gems
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
Value & Market
Price Tier
Fine ($500-5,000/ct)
Where to Buy Chrysoberyl
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 Chrysoberyl
금록석(金綠石, 크리소베릴)은 베릴륨-알루미늄 산화물로 이루어진 보석으로, 황색에서 녹색을 띱니다. 변색 효과를 보이는 '알렉산드라이트', 캣츠아이 효과를 보이는 '시밀리(Cymophane, 금록석 캣츠아이)' 등 최상급 변종으로 유명합니다. 브라질, 러시아, 미얀마, 스리랑카가 주요 산지이며, 높은 경도(8.5)와 내구성으로 귀보석 반열에 올라 있습니다.
Compare With
Jewelry Use
Durability
9/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Chrysoberyl?
금록석(金綠石, 크리소베릴)은 베릴륨-알루미늄 산화물로 이루어진 보석으로, 황색에서 녹색을 띱니다. 변색 효과를 보이는 '알렉산드라이트', 캣츠아이 효과를 보이는 '시밀리(Cymophane, 금록석 캣츠아이)' 등 최상급 변종으로 유명합니다. 브라질, 러시아, 미얀마, 스리랑카가 주요 산지이며, 높은 경도(8.5)와 내구성으로 귀보석 반열에 올라 있습니다.
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.