fluor-uvite
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Fluor-uvite is a tourmaline mineral with the chemical formula CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F. It is a rare mineral that is found in calcium rich contact metamorphic rocks with increased amounts of boron. Uvite is trigonal hexagonal, which means that it has three equal length axes at 120 degrees, all perpendicular to its fourth axis which has a different length. Uvite is part of the space group 3m. Uvite's hardness has been measured to be 7.5 on the Mohs hardness scale. The color of uvite widely varies, depending on the sample, but is mostly deep green or brown. In regard to uvite's optical p
In the Vinony graph
Vinony's link graph records 8 inbound references to fluor-uvite, and connects out to Mohs scale of mineral hardness, Sri Lanka and boron.
Vinony files it under Aluminium minerals, Calcium minerals and Cyclosilicates.
Vinony links it to 10 Wikipedia language editions.
Key facts
- Mineral.imagesize
- 260px
- Mineral.name
- Fluor-uvite
- Mineral.category
- Cyclosilicatetourmaline group
- Mineral.image
- Uvite sur quartz (Brésil) 4.JPG
- Mineral.caption
- Uvite on quartz
- Mineral.formula
- CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F
- Mineral.IMAsymbol
- Fluvt
- Mineral.strunz
- 9.CK.05
- Mineral.system
- Trigonal
- Mineral.class
- Ditrigonal pyramidal (3m) H-M symbol: (3m)
- Mineral.symmetry
- R3m
- Mineral.color
- Black, greenish-black, brownish-black, brown, green, colorless
- Mineral.cleavage
- None Observed
- Mineral.fracture
- Irregular/Uneven, Conchoidal
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 7.5
- Mineral.luster
- Vitreous, Resinous
- Mineral.opticalprop
- Uniaxial (-)
via Wikipedia infobox
Wikidata facts
- Named after
- Uva Province
- Image
- Uvite-155037.jpg
Show 7 more facts
- type locality (geology)
- Franklin
- Commons category
- Uvite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.CK.05
- Nickel-Strunz 9th edition (updated 2009)
- 9.CK.05
- crystal system
- trigonal crystal system
- IMA Mineral Symbol
- Fluvt
- chemical formula
- CaMg₃(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃F
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
1 sectionsContents
- References
Fluor-uvite is a tourmaline mineral with the chemical formula CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F. It is a rare mineral that is found in calcium rich contact metamorphic rocks with increased amounts of boron. Uvite is trigonal hexagonal, which means that it has three equal length axes at 120 degrees, all perpendicular to its fourth axis which has a different length. Uvite is part of the space group 3m. Uvite's hardness has been measured to be 7.5 on the Mohs hardness scale. The color of uvite widely varies, depending on the sample, but is mostly deep green or brown. In regard to uvite's optical properties, it is uniaxial (-) and anisotropic, meaning that the velocity of light in the mineral depends on the path that it takes. In plane polarized light, uvite is colorless to pale yellow and shows weak pleochroism.
Uvite was first found in 1929 in Uva Province, Sri Lanka, hence the name.
Excerpted from Wikipedia’s “fluor-uvite” article, available under the CC BY-SA 4.0 licence.