Bytownite


Bytownite is a popular mineral composed of calcium sodium aluminum silicate. [1]

Images of bytownite

Bytownite: Quick Facts and Characteristics

Some quick facts for Bytownite:
  • Transparency: Bytownite can be translucent or transparent.
  • Crystallography: In terms of crystallography, bytownite is triclinic.
  • Luster: In terms of luster, bytownite can be dull, pearly or vitreous (glassy).
  • Streak: Bytownite streaks white.
  • Hardness: Bytownite's hardness ranges from 6 to 6.5 on the Moh's scale.
  • Specific Gravity: Bytownite's specific gravity ranges from 2.72 to 2.75.

Bytownite: Background and Summary

Bytownite is a rare mineral that belongs to the plagioclase feldspar group, which is a group of minerals that are commonly found in igneous rocks. The mineral was first discovered in 1835 in Bytown, Ontario, Canada, and it was named after the location. Bytownite is a mineral that is commonly found in volcanic rocks and gabbros, and it is characterized by its light yellow, greenish-yellow, or brownish-yellow color. It has a hardness of 6-6.5 on the Mohs scale and a specific gravity of 2.7-2.8.

Bytownite can be identified by its color and its crystal structure. It has a triclinic crystal system, which means that its crystals have three axes of different lengths and are not perpendicular to each other. Bytownite crystals are usually tabular or prismatic, and they often have striations on their faces. Bytownite is commonly found in association with other minerals such as olivine, pyroxene, and quartz.

Bytownite is not a commonly used mineral in industry or jewelry making. However, it is sometimes used as a gemstone and can be cut into faceted gems. Bytownite is also used in the production of ceramics and glass because of its high melting point and chemical stability.

Bytownite: Table of Properties

Attribute Bytownite (src)
Transparency transparent, translucent
Chemical Formula (Ca,Na)Al1-2Si3-2O8
Chemical Composition calcium sodium aluminum silicate
Specific Gravity 2.72, 2.75
Hardness 6, 6.5
Streak white
Crystallography triclinic
Refractive Index 1.561, 1.57
Hydrous No
Colors common: brown, yellow
less common: gray, pale, cream, white, colorless, red
Category plagioclase
Birefringence δ = 0.010 - 0.011
Fracture 1: 1


Bytownite: FAQ

Q: Is bytownite a rare mineral?

A: Yes, bytownite is a rare mineral that is not commonly found in nature.

Q: Can bytownite be used as a gemstone?

A: Yes, bytownite can be cut into faceted gems and used as a gemstone.

Q: What is the hardness of bytownite?

A: Bytownite has a hardness of 6-6.5 on the Mohs scale.

Sources

- Mindat.org. (n.d.). Bytownite. Retrieved from https://www.mindat.org/min-856.html
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Webmineral.com. (n.d.). Bytownite Mineral Data. Retrieved from http://webmineral.com/data/Bytownite.shtml
- Bytownite: https://en.wikipedia.org/wiki/Bytownite

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