AllMineralsRock
Chrysoprase
Chrysoprase is a gemstone composed of silicon dioxide. [1]
Chrysoprase: Quick Facts and Characteristics
Some quick facts for Chrysoprase:- Transparency: Chrysoprase can be opaque, translucent or transparent.
- Crystallography: In terms of crystallography, chrysoprase can be hexagonal or trigonal.
- Luster: In terms of luster, chrysoprase can be greasy, vitreous (glassy) or waxy.
- Streak: Chrysoprase streaks white.
- Hardness: Chrysoprase's hardness ranges from 6.5 to 7 on the Moh's scale.
- Specific Gravity: Chrysoprase's specific gravity ranges from 2.651 to 2.91.
Chrysoprase: Background and Summary
Chrysoprase is a green-colored gemstone that belongs to the chalcedony family. It is a cryptocrystalline mineral that is formed from silica-rich solutions in cavities or fissures of rocks. The green color of chrysoprase is due to the presence of nickel impurities. The intensity of the green color depends on the amount of nickel present in the mineral. Chrysoprase has a hardness of 6.5 to 7 on the Mohs scale, which makes it a durable gemstone that can be used in jewelry.To identify chrysoprase, one can look for its green color and translucency. The color of chrysoprase ranges from a pale green to a deep apple green. The mineral is usually translucent, which means that light can pass through it but it is not completely transparent. Chrysoprase can be distinguished from other green gemstones such as emerald, peridot, and garnet by its color and translucency.
Chrysoprase has been used as a gemstone for thousands of years. It was highly valued by the ancient Greeks and Romans, who used it in jewelry and decorative objects. In the Middle Ages, it was believed to have healing properties and was used to treat a variety of ailments. Today, chrysoprase is still used in jewelry and is also used in carvings, figurines, and other decorative objects.
Chrysoprase is believed to have metaphysical properties that promote healing, prosperity, and emotional balance. It is said to help calm the mind and reduce stress, as well as promote forgiveness and compassion. Some people also believe that chrysoprase can help to boost self-confidence and creativity.
Chrysoprase: Table of Properties
| Attribute | Chrysoprase (src) |
|---|---|
| Transparency | transparent, translucent, opaque |
| Chemical Formula | SiO2 |
| Chemical Composition | silicon dioxide |
| Specific Gravity | 2.651, 2.91 |
| Hardness | 6.5, 7 |
| Streak | white |
| Crystallography | hexagonal, trigonal |
| Refractive Index | 1.54, 1.553 |
| Hydrous | No |
| Colors | common: green, olive |
| Category | chalcedony |
| Birefringence | δ = 0.004-0.009 |
Chrysoprase: FAQ
Q: Is chrysoprase a rare gemstone?A: Chrysoprase is not considered a rare gemstone, but high-quality specimens can be expensive.
Q: Can chrysoprase be treated?
A: Chrysoprase is not usually treated, but some lower quality specimens may be dyed to enhance their color.
Q: Where is chrysoprase found?
A: Chrysoprase is found in several locations around the world, including Australia, Brazil, Madagascar, and the United States.
Sources
- Gemological Institute of America. "Chrysoprase." https://www.gia.edu/chrysoprase- International Gem Society. "Chrysoprase Value, Price, and Jewelry Information." https://www.gemsociety.org/article/chrysoprase-jewelry-and-gemstone-information/
- Chrysoprase: https://en.wikipedia.org/wiki/Chrysoprase
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