Chrysoberyl Gemstone Details
History and Origin
Chrysoberyl is a mineral that was first discovered in 1789 by the French mineralogist, Jean Baptiste Louis Rome de Lisle. The name chrysoberyl comes from the Greek words "chrysos" and "beryllos," which mean "gold" and "beryl" respectively. The mineral was named for its golden-yellow color, which is the most common color for chrysoberyl.
Physical Properties
- Color: Yellow, green, brown, or colorless
- Hardness: 8.5 on the Mohs scale
- Specific Gravity: 3.5 - 3.8
- Luster: Vitreous to greasy
- Transparency: Transparent to translucent
Optical Properties
- Refractive Index: 1.745 – 1.756
- Birefringence: 0.008 – 0.010
- Dispersion: 0.014
Elementary Chemical Analysis
Chrysoberyl is an oxide mineral that contains aluminum and beryllium. Its chemical formula is BeAl2O4. The mineral often contains trace amounts of other elements, such as titanium, iron, or chromium, which can cause variations in color.
Most High Price Selling Record
The most expensive chrysoberyl ever sold was a 67.79-carat alexandrite variety of chrysoberyl that was sold for $1.3 million in 2005. The gemstone was originally discovered in the emerald mines of the Ural Mountains in Russia.
Uses
Chrysoberyl is primarily used as a gemstone in jewelry. It is a popular choice for earrings, necklaces, and other types of jewelry due to its hardness and durability. It is also used in some industrial applications, such as in the manufacture of ceramic materials and electronic components.
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