Ferberite
SOLD
Ferberite
- Sold
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- Availability
- Sold
- Size
- 5 x 8 x 5 cm - Sm Cabinet
- Formula
- Fe2+WO4 (RRUFF)
- Locality
- Cold Spring Mine, Tungsten Dist., Boulder Co., Colorado, United States
- Tagged
- tungstate
A heavy solid 5cm thick vein of lustrous sharp black Ferberite crystals, some of which are well formed in open spaces to 3mm. Impressive specimen!
Additionally, this intersting piece comes with a label from the E. Mitchell Gunnell Collection that mentions it was originally acquired from a minor in Boulder, Colorado in 1938.
Ferberite
- Formula
- Fe2+WO4
- Crystal System
- Monoclinic
- Crystal Habit
- Prismatic, Lamellar, Massive - Granular
- Cleavage
- Perfect, Parting, Parting
- Luster
- Sub Metallic
- Color
- black
- Streak
- brownish black
- Class
- Monoclinic - Prismatic
- Fracture
- Brittle - Uneven
- Hardness
- 4.5
Data courtesy of Webmineral.
- Collection
- Phillips Collection
- Mineralpedia
- View Ferberite
- On Dakota Matrix
- Previously Sold Ferberite
- On Dakota Matrix
- Other Available Ferberite
- WebMineral
- View Ferberite
- Mindat
- View Ferberite
