elbaite
Sign in to saveElbaite, a sodium, lithium, aluminium boro-silicate, with the chemical composition Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4, is a mineral species belonging to the six-member ring cyclosilicate tourmaline group.
Key facts
- Mineral.name
- Elbaite
- Mineral.category
- Cyclosilicate
- Mineral.boxbgcolor
- 7aaa11
- Mineral.boxtextcolor
- FFFFFF
- Mineral.image
- Elbaite with albite - São José da Safira, Minas Gerais, Brazil.jpg
- Mineral.imagesize
- 280px
- Mineral.formula
- Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
- Mineral.IMAsymbol
- Elb
- Mineral.strunz
- 9.CK.05
- Mineral.system
- Trigonal
- Mineral.class
- Ditrigonal pyramidal (3m) H–M symbol: (3m)
- Mineral.symmetry
- R3m
- Mineral.color
- Green, red to pink, blue, orange, yellow, colorless, multicolored
- Mineral.habit
- Prismatic; striated
- Mineral.cleavage
- Poor/indistinct on {1120} and {1011}
- Mineral.fracture
- Sub-conchoidal
- Mineral.luster
- Vitreous
- Mineral.refractive
- nω = 1.635–1.650, nε = 1.615–1.632
via Wikipedia infobox
Article
3 sectionsContents
- Elbaite varieties
- See also
- References
{{Infobox mineral | name = Elbaite | category = Cyclosilicate | boxbgcolor = #7aaa11 | boxtextcolor = #FFFFFF | image = Elbaite with albite - São José da Safira, Minas Gerais, Brazil.jpg | imagesize = 280px | caption = | formula = Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4 | IMAsymbol = Elb | molweight = | strunz = 9.CK.05 | system = Trigonal | class = Ditrigonal pyramidal (3m) H–M symbol: (3m) | symmetry = R3m | color = Green, red to pink, blue, orange, yellow, colorless, multicolored | habit = Prismatic; striated | cleavage = Poor/indistinct on {1120} and {1011} | fracture = Sub-conchoidal | mohs = | luster = Vitreous | refractive = nω = 1.635–1.650, nε = 1.615–1.632 | opticalprop = Uniaxial (−); moderate relief | birefringence = δ = 0.020 | streak = White | density = 2.9–3.2 | diaphaneity = Transparent to opaque | other = piezoelectric and pyroelectric | references = | var1 = Achroite | var1text = colorless | var2 = Indicolite | var2text = blue | var3 = Rubellite | var3text = red to pink | var4 = Verdelite | var4text = green }}
Elbaite, a sodium, lithium, aluminium boro-silicate, with the chemical composition Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4, is a mineral species belonging to the six-member ring cyclosilicate tourmaline group.