jeremejevite
Sign in to saveJeremejevite is an aluminium borate mineral with variable fluoride and hydroxide ions. Its chemical formula is . It is considered as one of the rarest, thus one of the most expensive stones. For nearly a century, it was considered as one of the rarest gemstones in the world.
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Vinony's link graph records 8 inbound references to jeremejevite, and connects out to Germany, Namibia and Tajikistan.
It sits within the topics Borate minerals, Hexagonal minerals and Minerals in space group 176.
Vinony links it to 16 Wikipedia language editions.
Key facts
- Mineral.name
- Jeremejevite
- Mineral.category
- Borate mineral
- Mineral.boxbgcolor
- b5b5dc
- Mineral.image
- File:Jeremejevite-273103.jpg
- Mineral.imagesize
- 260px
- Mineral.IMAsymbol
- Jer
- Mineral.strunz
- 6.AB.15
- Mineral.system
- Hexagonal
- Mineral.symmetry
- P6/m
- Mineral.color
- Colorless, white, yellowish, blue, light yellow brown, aquamarine blue, rarely violet; colourless in transmitted light
- Mineral.habit
- Prismatic
- Mineral.cleavage
- None observed
- Mineral.fracture
- Conchoidal
- Mineral.mohs
- 6.5 – 7.5
- Mineral.luster
- Vitreous
- Mineral.refractive
- n = 1.653 n = 1.640
- Mineral.opticalprop
- Uniaxial (-)
- Mineral.birefringence
- 0.0130
via Wikipedia infobox
Wikidata facts
- Image
- Jeremjevite blue crystals - Ochtendung, Eifel, Germany.jpg
Show 6 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 6.AB.15
- Commons category
- Jeremejevite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 6.AB.15
- IMA Mineral Symbol
- Jer
- chemical formula
- Al₆(BO₃)₅F₃
- Strunz 8th edition (series ID, updated)
- Vc/A.01a
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
4 sectionsContents
- Properties
- Mining and localities
- Jewelry industry
- References
Jeremejevite is an aluminium borate mineral with variable fluoride and hydroxide ions. Its chemical formula is . It is considered as one of the rarest, thus one of the most expensive stones. For nearly a century, it was considered as one of the rarest gemstones in the world.
It was first described in 1883 as small, single crystals in loose granitic debris in Mt. Soktui, Nerschinsk district, Adun-Chilon Mountains, Siberia. It was named after Pavel Vladimirovich Eremeev, Russian mineralogist, engineer and professor, who collected the first specimens (Jeremejev, German; 1830–1899).
Excerpted from Wikipedia’s “jeremejevite” article, available under the CC BY-SA 4.0 licence.