blödite
Also known as bloedite, astrakhanite, astrakanite
Blödite or bloedite is a hydrated sodium magnesium sulfate mineral with the formula Na2Mg(SO4)2·4H2O. The mineral is clear to yellow in color often darkened by inclusions and forms monoclinic crystals.
Key facts
- Mineral.name
- Blödite
- Mineral.category
- Sulfate minerals
- Mineral.image
- Blodite-162510.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Doubly terminated blödite crystal from Soda Lake, San Luis Obispo County, California (size: 7.0 × 4.8 × 1.9 cm)
- Mineral.formula
- Na2Mg(SO4)2·4H2O
- Mineral.IMAsymbol
- Blö
- Mineral.strunz
- 7.CC.50
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/a
- Mineral.unit cell
- a = 11.04 Å, b = 8.15 Å, c = 5.49 Å; β = 100.41°; Z = 2
Article
2 sectionsContents
- See also
- References
Blödite or bloedite is a hydrated sodium magnesium sulfate mineral with the formula Na2Mg(SO4)2·4H2O. The mineral is clear to yellow in color often darkened by inclusions and forms monoclinic crystals.
Blödite was first described in 1821 for an occurrence in a salt deposit in Ischler Salzberg, Bad Ischl, Gmunden, Austria and named for German mineralogist and chemist Karl August Blöde (1773–1820).