AllMineralsRock
Dioptase
Dioptase is a popular mineral composed of copper silicate. [1]
Dioptase: Quick Facts and Characteristics
Some quick facts for Dioptase:- Transparency: Dioptase can be opaque, translucent or transparent.
- Crystallography: In terms of crystallography, dioptase can be hexagonal or trigonal.
- Luster: In terms of luster, dioptase can be adamantine or vitreous (glassy).
- Streak: Dioptase streaks green.
- Hardness: Dioptase's hardness is 5 on the Moh's scale.
- Specific Gravity: Dioptase's specific gravity ranges from 3.28 to 3.35.
Dioptase: Background and Summary
Dioptase is a bright green, copper-based mineral that is often found in oxidized copper deposits. It is a relatively rare mineral, and its distinctive color and crystal structure make it a popular choice for collectors and jewelry makers. Dioptase is typically found in small, isolated crystals that are often clustered together.One of the most distinctive features of dioptase is its bright green color, which is caused by the presence of copper ions. The mineral has a hardness of around 5 on the Mohs scale, which means that it is relatively soft and can be easily scratched. Dioptase crystals are typically hexagonal in shape, and they often form in small, well-defined clusters.
Dioptase is often used in jewelry making, where it is cut and polished into small gemstones. The mineral's bright green color and unique crystal structure make it a popular choice for collectors and jewelry enthusiasts alike. In addition to its aesthetic value, dioptase is also used in the production of copper, where it is used as an ore of copper.
Dioptase: Table of Properties
| Attribute | Dioptase (src) |
|---|---|
| Transparency | transparent, translucent, opaque |
| Chemical Formula | Cu6Si6O18·6H2O |
| Chemical Composition | copper silicate |
| Specific Gravity | 3.28, 3.35 |
| Hardness | 5 |
| Streak | green |
| Crystallography | hexagonal, trigonal |
| Refractive Index | 1.644, 1.709 |
| Hydrous | Yes |
| Colors | common: green less common: blue |
| Category | cyclosilicate |
| Birefringence | δ = 0.052 |
| Fracture | 1: 1 |
Dioptase: FAQ
Q: Is dioptase a common mineral?A: No, dioptase is a relatively rare mineral that is typically found in oxidized copper deposits.
Q: How do I identify dioptase?
A: Dioptase is a bright green mineral that is often found in small, hexagonal crystals. It has a hardness of around 5 on the Mohs scale and is typically found in oxidized copper deposits.
Q: What is dioptase used for?
A: Dioptase is often used in jewelry making, where it is cut and polished into small gemstones. It is also used in the production of copper, where it is used as an ore of copper.
Sources
- "Dioptase." Mindat.org. https://www.mindat.org/min-1273.html- "Dioptase." Geology.com. https://geology.com/minerals/dioptase.shtml
- Dioptase: https://en.wikipedia.org/wiki/Dioptase
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