Mineralpedia Details for Jeanbandyite
Jeanbandyite
Named for Mrs. Jean Bandy of Arizona, USA who translated Agricola’s De Natura Fossilium from Latin, along with the help of her husband Mark Bandy. Jeanbandyite is a rare mineral that can be found only in localities in Bolivia, Mexico, Canada, and newer localities in England. It occurs in oxidized zones of polymetallic hydrothermal deposits.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/jeanbandyite.pdf
- Formula
- (Fe3+,Mn2+)Sn4+(OH,O)6
- Crystal System
- Tetragonal
- Crystal Habit
- Crystalline - Coarse, Striated, Pseudo Octohedral
- Cleavage
- Good, Fair, None
- Luster
- Vitreous - Adamantine
- Color
- brown orange, red brown, pale yellow
- Streak
- light yellow
- Class
- Tetragonal - Dipyramidal
- Hardness
- 3.5
- WebMineral
- View Jeanbandyite
- Mindat
- View Jeanbandyite
Jeanbandyite from Siglo Veinte mine, Llallagua, Bolivia
Tiny micro yellowish orange crystals to about 0.2mm, blocky in nature without much form. At least one has a little octahedral form.
Jeanbandyite from Hingston Down quarry, Gunnislake, Cornwall, England
A tiny creamy octahedral crystal to about 0.75mm.
Jeanbandyite from Mt. Pleasant mine, Charlotte Co., New Brunswick, Canada
Murky yellow, crude tetragonal dipyramids to about 0.5mm. There are numerous crystals all over the specimen. I am not sure what the brownish yellow spherical groups are. The matrix is Fluorite.
