tungstite
Sign in to saveTungstite is a hydrous tungsten oxide mineral with formula: WO3·H2O. It is a secondary mineral formed by the weathering of other tungsten containing minerals. It crystallizes in the orthorhombic system in translucent yellow to yellow green masses. It is clay-like with Mohs hardness of 2.5 and a specific gravity of 5.5.
Key facts
- Mineral.name
- Tungstite
- Mineral.image
- Tungstite on ferberite.jpg
- Mineral.imagesize
- 250px
- Mineral.caption
- Bright yellow tungstite on ferberite
- Mineral.formula
- WO3·H2O
- Mineral.IMAsymbol
- Tgs
- Mineral.molweight
- 249.86 g/mol
- Mineral.strunz
- 4.FJ.10
- Mineral.system
- Orthorhombic
- Mineral.class
- Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pmnb
- Mineral.color
- Yellow, yellowish green/orange
- Mineral.habit
- Earthy, pulverulent
- Mineral.cleavage
- Perfect along [001], imperfect along [110]
- Mineral.mohs
- 2.5
- Mineral.luster
- Resinous, pearly
- Mineral.refractive
- nα = 2.090, nβ = 2.240, nγ = 2.260
- Mineral.opticalprop
- Biaxial (-)
via Wikipedia infobox
Wikidata facts
- Named after
- tungsten
- Image
- Tungstite on ferberite.jpg
Show 7 more facts
- Strunz 8th edition (series ID, updated)
- IV/F.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.FJ.10
- Commons category
- Tungstite
- chemical formula
- WO₃·H₂O
- Nickel-Strunz 9th edition (updated 2009)
- 4.FJ.10
- streak color
- yellow
- IMA Mineral Symbol
- Tgs
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
1 sectionsContents
- References
Tungstite is a hydrous tungsten oxide mineral with formula: WO3·H2O. It is a secondary mineral formed by the weathering of other tungsten containing minerals. It crystallizes in the orthorhombic system in translucent yellow to yellow green masses. It is clay-like with Mohs hardness of 2.5 and a specific gravity of 5.5.
It was first described in 1868 for an occurrence near Trumbull, Connecticut at the Hubbard Tungsten Mine at Long Hill.
Excerpted from Wikipedia’s “tungstite” article, available under the CC BY-SA 4.0 licence.