Jeremejevite


Jeremejevite is a very popular mineral composed of aluminium borate. [1]

Images of jeremejevite

Jeremejevite: Quick Facts and Characteristics

Some quick facts for Jeremejevite:
  • Transparency: Jeremejevite is transparent.
  • Crystallography: In terms of crystallography, jeremejevite is hexagonal.
  • Luster: In terms of luster, jeremejevite is vitreous (glassy).
  • Streak: Jeremejevite streaks white.
  • Hardness: Jeremejevite's hardness ranges from 6.5 to 7.5 on the Moh's scale.
  • Specific Gravity: Jeremejevite's specific gravity ranges from 3.28 to 3.31.

Jeremejevite: Background and Summary

Jeremejevite is a rare mineral that was first discovered in 1883 in the Adun-Chilon Mountains of Siberia. It was named after Pavel V. Jeremejev, a Russian mineralogist who first identified the mineral. Jeremejevite is a complex aluminum borate mineral with the chemical formula Al6B5O15(F,OH)3. It is usually found in pegmatite veins and granite rocks, and its color ranges from colorless to pale blue, yellow, green, or brown.

One of the most distinctive features of jeremejevite is its crystal structure. The mineral forms elongated, hexagonal prisms with tapered ends, and the crystals are often transparent and highly lustrous. The prisms can reach up to several centimeters in length, and they are usually terminated by a pyramidal face. The crystals are often twinned and can be mistaken for other hexagonal minerals such as aquamarine, beryl, or topaz. However, jeremejevite has a higher specific gravity and a different crystal structure than these minerals.

Jeremejevite is a rare and valuable gemstone that is sought after by collectors and jewelry designers. Its rarity and unique crystal structure make it an attractive option for those who want to own a piece of the Earth's natural beauty. However, due to its scarcity, jeremejevite is not widely available on the market, and its price can be quite high. The gemstone is often cut into faceted gems, cabochons, or beads, and it is usually set in high-end jewelry pieces.

Jeremejevite has also been used in scientific research to study the properties of minerals and the Earth's geology. Its crystal structure and chemical composition have been analyzed using X-ray diffraction, electron microscopy, and other techniques, providing valuable insights into the formation and evolution of minerals in the Earth's crust.

Jeremejevite: Table of Properties

Attribute Jeremejevite (src)
Transparency transparent
Chemical Formula Al6B5O15F3
Chemical Composition aluminium borate
Specific Gravity 3.28, 3.31
Hardness 6.5, 7.5
Streak white
Crystallography hexagonal
Refractive Index 1.637, 1.653
Hydrous No
Colors common: blue, brown, yellow
less common: pale, green, white, violet, colorless, gold
Category borate
Birefringence δ = 0.0130


Jeremejevite: FAQ

Q: Is jeremejevite a common mineral?
A: No, jeremejevite is a rare mineral that is found in only a few locations around the world.

Q: Can jeremejevite be used in jewelry?
A: Yes, jeremejevite is a popular gemstone that can be cut and polished into various shapes and sizes for use in jewelry.

Q: What is the value of jeremejevite?
A: The value of jeremejevite varies depending on its size, color, and quality. However, due to its rarity, jeremejevite can be quite expensive.

Sources

- https://www.mindat.org/min-2083.html
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https://www.gemsociety.org/article/jeremejevite-jewelry-and-gemstone-information/
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https://www.gia.edu/jeremejevite-description
- Jeremejevite: https://en.wikipedia.org/wiki/Jeremejevite

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