mirabilite
Sign in to saveMirabilite, also known as Glauber's salt, is a hydrous sodium sulfate mineral with the chemical formula Na2SO4·10H2O. It is a vitreous, colorless to white monoclinic mineral that forms as an evaporite from sodium sulfate-bearing brines. It is found around saline springs and along saline playa lakes. Associated minerals include gypsum, halite, thenardite, trona, glauberite, and epsomite.
Key facts
- Mineral.name
- Mirabilite
- Mineral.category
- Sulfate minerals
- Mineral.image
- Mangxiao.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- Na2SO4·10H2O
- Mineral.IMAsymbol
- Mrb
- Mineral.molweight
- 322.9 g/mol
- Mineral.strunz
- 7.CD.10
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/c
- Mineral.color
- Colorless, white, yellowish-white, greenish-white
- Mineral.habit
- Granular or well-formed coarse crystals
- Mineral.twinning
- Interpenetration twinning on {001}; also on {100}
- Mineral.cleavage
- {100} perfect, {001} poor, {010} poor
- Mineral.fracture
- Conchoidal
- Mineral.mohs
- 1.5–2
- Mineral.luster
- Vitreous
via Wikipedia infobox
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{{Infobox mineral | name = Mirabilite | category = Sulfate minerals | boxwidth = | boxbgcolor = | image = Mangxiao.jpg | imagesize = 260px | caption = | formula = Na2SO4·10H2O | IMAsymbol = Mrb | molweight = 322.9 g/mol | strunz = 7.CD.10 | dana = | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P21/c | color = Colorless, white, yellowish-white, greenish-white | habit = Granular or well-formed coarse crystals | lattice = | twinning = Interpenetration twinning on {001}; also on {100} | cleavage = {100} perfect, {001} poor, {010} poor | fracture = Conchoidal | tenacity = | mohs = 1.5–2 | luster = Vitreous | refractive = nα = 1.396, nβ = 1.4103, nγ = 1.419 | opticalprop = Biaxial (–), 2V=75.93° | birefringence = δ = 0.023 | pleochroism = none | streak = White | gravity = 1.49 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent to translucent to opaque | other = Not radioactive, non-fluorescent | references = }}
Mirabilite, also known as Glauber's salt, is a hydrous sodium sulfate mineral with the chemical formula Na2SO4·10H2O. It is a vitreous, colorless to white monoclinic mineral that forms as an evaporite from sodium sulfate-bearing brines. It is found around saline springs and along saline playa lakes. Associated minerals include gypsum, halite, thenardite, trona, glauberite, and epsomite.