Gahnite
SOLD
Gahnite
- Sold
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- Availability
- Sold
- Size
- 11 x 7 x 6 cm - Cabinet
- Formula
- ZnAl2O4 (RRUFF)
- Locality
- Hawks Pyrite mine, Charlemont, Franklin Co., Massachusetts, United States
An old specimen from the University of Delaware with label. The mine was apparently a Pyrite deposit of massive sulfide origin, according to Mindat. The specimen is large with dozens of dark green, lustrous crystals from 1 to 6mm. Gahnite is the zinc Spinel.
Gahnite
- Formula
- ZnAl2O4
- Crystal System
- Isometric
- Crystal Habit
- Euhedral Crystals, Massive - Granular, Striated
- Cleavage
- Indistinct, None, None
- Luster
- Vitreous (Glassy)
- Color
- bluish green, grayish green, deep leek green, greenish black, bluish black
- Streak
- gray
- Class
- Isometric - Hexoctahedral
- Fracture
- Uneven
- Hardness
- 8
Data courtesy of Webmineral.
- Collection
- Robert J. Waidler Collection
- Mineralpedia
- View Gahnite
- On Dakota Matrix
- Previously Sold Gahnite
- On Dakota Matrix
- Other Available Gahnite
- WebMineral
- View Gahnite
- Mindat
- View Gahnite
