bystrite
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Bystrite is a silicate mineral with the formula (Na,K)7Ca(Si6Al6)O24S4.5•(H2O), and a member of the cancrinite mineral group. It is a hexagonal crystal, with a 3m point group. The mineral may have been named after the Malaya Bystraya deposits in Russia, where it was found.
Key facts
- Mineral.name
- Bystrite
- Mineral.category
- Tectosilicate minerals
- Mineral.group
- Feldspathoid group, cancrinite group
- Mineral.formula
- (Na,K)7Ca(Si6Al6)O24S4.5•(H2O)
- Mineral.IMAsymbol
- Bys
- Mineral.strunz
- 9.FB.05
- Mineral.dana
- 76.02.05.02
- Mineral.system
- Trigonal
- Mineral.class
- Ditrigonal pyramidal (3m) H-M symbol: (3m)
- Mineral.symmetry
- P31c
- Mineral.color
- Yellow
- Mineral.habit
- Tabular to irregular grains and inclusions
- Mineral.cleavage
- {100} Good
- Mineral.mohs
- 5
- Mineral.luster
- Vitreous
- Mineral.streak
- light yellow
- Mineral.diaphaneity
- Transparent to translucent
- Mineral.gravity
- 2.43
via Wikipedia infobox
Wikidata facts
- Image
- Tounkite & Bystrite.jpg
Show 5 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.FB.05
- Nickel-Strunz 9th edition (updated 2009)
- 9.FB.05
- IMA Mineral Symbol
- Bys
- chemical formula
- (Na,K)₇Ca(Al₆Si₆O₂₄)(S₅)Cl
- Commons category
- Bystrite
Sources (1)
via Wikidata · CC0
~3 min read
Article
4 sectionsContents
- Structure
- Geologic occurrence
- Literature survey
- References
{{Infobox mineral | name = Bystrite | category = Tectosilicate minerals | group = Feldspathoid group, cancrinite group | image = | alt = | caption = | formula = (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) | IMAsymbol=Bys | molweight = | strunz = 9.FB.05 | dana = 76.02.05.02 | system = Trigonal | class = Ditrigonal pyramidal (3m) H-M symbol: (3m) | symmetry = P31c | color = Yellow | colour = | habit = Tabular to irregular grains and inclusions | twinning = | cleavage = {100} Good | fracture = | tenacity = | mohs = 5 | luster = Vitreous | streak = light yellow | diaphaneity = Transparent to translucent | gravity = 2.43 | density = | polish = | opticalprop = Uniaxial (+) | refractive = nω = 1.584 nε = 1.660 | birefringence = δ = 0.076 | pleochroism = Deep yellow to colorless | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence= | absorption = | melt = | fusibility = | diagnostic = | solubility = | other = | alteration = | references = }} Bystrite is a silicate mineral with the formula (Na,K)7Ca(Si6Al6)O24S4.5•(H2O), and a member of the cancrinite mineral group. It is a hexagonal crystal, with a 3m point group. The mineral may have been named after the Malaya Bystraya deposits in Russia, where it was found.
Bystrite is a cancrinite mineral and exhibits similar physical properties, composition and structure as other cancrinites.