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
- Image
- Tungstite on ferberite.jpg
Show 6 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
- IMA Mineral Symbol
- Tgs
Sources (1)
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Article
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.