Pyrargyrite
Pyrargyrite is a popular mineral composed of silver antimony sulfide. [1]
Pyrargyrite: Quick Facts and Characteristics
Some quick facts for Pyrargyrite:- Transparency: Pyrargyrite can be opaque, translucent or transparent.
- Crystallography: In terms of crystallography, pyrargyrite can be hexagonal or trigonal.
- Luster: In terms of luster, pyrargyrite can be adamantine, metallic or submetallic.
- Streak: Pyrargyrite streaks purplish, purplish red or red.
- Hardness: Pyrargyrite's hardness is 2.5 on the Moh's scale.
- Specific Gravity: Pyrargyrite's specific gravity is 5.85.
Pyrargyrite: Background and Summary
Pyrargyrite is a mineral that is commonly known as ruby silver or dark red silver ore. It is a silver sulfosalt mineral that is composed of silver, antimony, and sulfur. Its chemical formula is Ag3SbS3, and it has a Mohs hardness of 2.5-3. Pyrargyrite is a rare mineral that is often found in hydrothermal veins associated with other minerals like quartz, galena, and sphalerite.To identify pyrargyrite, one can look for its distinctive dark red or ruby-red color. It has a metallic luster and can be found in opaque to translucent crystals. Pyrargyrite is also quite dense, with a specific gravity of 5.8-5.9. It is often confused with other minerals like proustite, which is also a silver sulfosalt mineral that has a similar color and crystal structure.
Pyrargyrite has a few uses, but its main application is as an ore of silver. It is often mined as a source of silver, which is used in various industrial applications like electronics, photography, and jewelry. Pyrargyrite is also used as a gemstone and is sometimes cut into faceted stones for use in jewelry. However, due to its softness and rarity, it is not commonly used in jewelry.
Pyrargyrite: Table of Properties
Attribute | Pyrargyrite (src) |
---|---|
Transparency | transparent, translucent, opaque |
Chemical Formula | Ag3SbS3 |
Chemical Composition | silver antimony sulfide |
Specific Gravity | 5.85 |
Hardness | 2.5 |
Streak | purplish red, purplish, red |
Crystallography | hexagonal, trigonal |
Refractive Index | 2.88, 3.08 |
Hydrous | No |
Colors | common: red, gray sometimes: black |
Category | sulfosalt |
Birefringence | δ = 0.203 |
Fracture | 1: 1 |
Pyrargyrite: FAQ
FAQs:Q: Is pyrargyrite toxic?
A: Pyrargyrite is not toxic, but like all minerals, it should not be ingested or inhaled.
Q: Where is pyrargyrite found?
A: Pyrargyrite is found in hydrothermal veins in various parts of the world, including Mexico, Chile, Peru, Germany, and the United States.
Q: What is the value of pyrargyrite?
A: The value of pyrargyrite varies depending on its quality and rarity. As a gemstone, it can fetch high prices, but as an ore of silver, its value is based on the current market price of silver.
Sources
- "Pyrargyrite: Mineral information, data, and localities." Mindat.org. https://www.mindat.org/min-3317.html- "Pyrargyrite." Geology.com. https://geology.com/minerals/pyrargyrite.shtml
- "Pyrargyrite." Britannica.com. https://www.britannica.com/science/pyrargyrite
- Pyrargyrite: https://en.wikipedia.org/wiki/Pyrargyrite
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