Amethyst
Amethyst is a very popular gemstone composed of silicon dioxide. [1]
Amethyst: Quick Facts and Characteristics
Some quick facts for Amethyst:- Transparency: Amethyst can be translucent or transparent.
- Crystallography: In terms of crystallography, amethyst can be hexagonal or trigonal.
- Luster: In terms of luster, amethyst is vitreous (glassy).
- Streak: Amethyst streaks white.
- Hardness: Amethyst's hardness is 7 on the Moh's scale.
- Specific Gravity: Amethyst's specific gravity is 2.651.
Amethyst: Background and Summary
Amethyst is a mineral that belongs to the quartz family and is known for its purple color. The color of amethyst can range from pale lilac to deep purple, depending on the concentration of iron and other trace elements present in the crystal. It is a popular gemstone and is often used for jewelry, decorative purposes, and spiritual healing.Identifying amethyst is relatively simple. The color is the most distinguishing characteristic of this mineral. Amethyst has a purple hue that can vary in intensity. It can also be identified by its crystal structure, which is hexagonal, and it has a hardness of 7 on the Mohs scale. Another way to identify amethyst is by its transparency. It is usually transparent to translucent, which means that light can pass through it, but you cannot see through it completely.
Amethyst has been used for a variety of purposes throughout history. In ancient times, it was believed to have healing properties and was used to treat a range of ailments, including headaches, insomnia, and alcohol addiction. Today, it is still used in spiritual practices and is believed to have calming and balancing properties. It is also used in jewelry and decorative items, such as vases and sculptures.
Amethyst: Table of Properties
Attribute | Amethyst (src) |
---|---|
Transparency | transparent, translucent |
Chemical Formula | SiO2 |
Chemical Composition | silicon dioxide |
Specific Gravity | 2.651 |
Hardness | 7 |
Streak | white |
Crystallography | hexagonal, trigonal |
Refractive Index | 1.544, 1.553 |
Hydrous | No |
Colors | common: purple sometimes: lilac less common: pale, violet, red |
Solubility | Insoluble in common solvents |
Category | silicate |
Birefringence | δ = +0.009 (B-G interval) |
Fracture | 1: 1 |
Amethyst: FAQ
Q: What is the origin of the name amethyst?A: The name amethyst comes from the Greek word "amethystos," which means "not drunken." It was believed to have the power to ward off drunkenness.
Q: Where is amethyst found?
A: Amethyst can be found in many parts of the world, including Brazil, Uruguay, Zambia, and Russia.
Q: Is amethyst a valuable gemstone?
A: Amethyst is a relatively common gemstone and is not as valuable as some other gemstones, such as diamonds or rubies. However, it is still a popular and desirable gemstone.
Q: Can amethyst be treated or enhanced?
A: Amethyst can be heat-treated to enhance its color. This is a common practice in the gemstone industry.
Sources
- "Amethyst." Geology.com. Accessed September 10, 2021. https://geology.com/gemstones/amethyst/.- "Amethyst." Minerals.net. Accessed September 10, 2021. https://www.minerals.net/mineral/amethyst.aspx.
- Amethyst: https://en.wikipedia.org/wiki/Amethyst
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