glauberite
Sign in to saveGlauberite is a monoclinic sodium calcium sulfate mineral with the formula Na2Ca(SO4)2.
Key facts
- Mineral.name
- Glauberite
- Mineral.image
- Glauberite-172284.jpg
- Mineral.caption
- Glauberite crystal group from the Bertram Siding Sulfate deposit, Imperial County, California
- Mineral.category
- Sulfate minerals, anhydrous sulfate subgroup
- Mineral.formula
- Na2Ca(SO4)2
- Mineral.IMAsymbol
- Glb
- Mineral.strunz
- 7.AD.25
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/c
- Mineral.unit cell
- a = 10.129, b = 8.306 c = 8.533 [Å]; β = 112.19°; Z = 4
- Mineral.color
- Gray or pale yellow, colorless
- Mineral.habit
- Tabular prismatic crystals
- Mineral.cleavage
- Perfect on {001}, imperfect on {110}
- Mineral.fracture
- Conchoidal
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 2.5–3
- Mineral.luster
- Vitreous to waxy, pearly on cleavages
via Wikipedia infobox
Wikidata facts
- Subclass of
- sulfate mineral
- Named after
- Johann Rudolf Glauber
- Image
- Glauberite-172284.jpg
Show 9 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 7.AD.25
- Commons category
- Glauberite
- Nickel-Strunz 9th edition (updated 2009)
- 7.AD.25
- crystal system
- monoclinic crystal system
- type locality (geology)
- Villarrubia de Santiago
- streak color
- white
- IMA Mineral Symbol
- Glb
- chemical formula
- Na₂Ca(SO₄)₂
- Strunz 8th edition (series ID, updated)
- VI/A.07
Sources (1)
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Encyclopedic overview
1 sectionsContents
- References
{{Infobox mineral | name = Glauberite | image = Glauberite-172284.jpg | alt = | caption = Glauberite crystal group from the Bertram Siding Sulfate deposit, Imperial County, California | category = Sulfate minerals, anhydrous sulfate subgroup | formula = Na2Ca(SO4)2 | IMAsymbol = Glb | strunz = 7.AD.25 | dana = | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = C2/c | unit cell = a = 10.129, b = 8.306 c = 8.533 [Å]; β = 112.19°; Z = 4 | color = Gray or pale yellow, colorless | colour = | habit = Tabular prismatic crystals | twinning = | cleavage = Perfect on {001}, imperfect on {110} | fracture = Conchoidal | tenacity = Brittle | mohs = 2.5–3 | luster = Vitreous to waxy, pearly on cleavages | streak = White | diaphaneity = Transparent to translucent | gravity = 2.75–2.85 | density = | polish = | opticalprop = Biaxial (−) | refractive = nα = 1.507 – 1.515 nβ = 1.527 – 1.535 nγ = 1.529 – 1.536 | birefringence = δ = 0.022 | pleochroism = | 2V = 24° to 34° | dispersion = strong r > v | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = HCl and H2O (water) soluble | impurities = | alteration = readily alters to gypsum | other = often a pseudomorph | prop1 = | prop1text = | references = }}
Glauberite is a monoclinic sodium calcium sulfate mineral with the formula Na2Ca(SO4)2.
Excerpted from Wikipedia’s “glauberite” article, available under the CC BY-SA 4.0 licence.