bixbyite
bixbyite crystal with topaz from Thomas Range, Utah in the U.S.
Detailed sheet
bixbyite
Discovered in 1897 in Thomas Range in Utah, United States, its name honors the prospector and mineralogist Maynard Bixby (1853-1935) who was a minerals specialist from Utah.
CHEMICAL CHARACTERISTICS
(Mn,Fe)2O3
manganese iron oxide mineral
PHYSICAL CHARACTERISTICS
Main color
black
Color of streak
black
Luster
metallic
Hardness
6.0 to 6.5
Density
4.95 to 5.00
Cleavage
none
Fracture
uneven
OPTICAL PROPERTIES
Transparency
opaque
Refractive index
0.000 - 0.000
Double refraction
0.000
refractive index illegible, zero birefringence, isotropic
visible double refraction
No
Dispersion
-
Pleochroism
absent
Number of colors
1
Fluorescence
none
CRYSTALS PROPERTIES
cubic with truncations
crystals system
cubic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is also found in the mine Chocaya in Bolivia, in the Kalahari in South Africa, China (Jiangxi, Manchuria), Germany, Sweden, Wales, and on the east coast of the United States.
use in jewelry
it is cut in facets or cabochon
Historical
healing properties
Close to the magnetite and enstatite, it would have a beneficial action on the digestive system.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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