chambersite
chambersite crystals from louisiana in U.S.
chambersite fancy cut from U.S.
Detailed sheet
chambersite
New mineral discovered in 1957 in Texas, in Chambers County (Barber’s Hill salt dome), hence its name.
The crystals were found in the brine returns from a gas drilling because it is a borate insoluble in water. Thereafter deposits were discovered in Louisiana, Canada, and especially in China as ore in 1971 (Dongshuichang in Jixian, Tianjin).
CHEMICAL CHARACTERISTICS
Mn3[B7O13]Cl
manganese borate mineral
PHYSICAL CHARACTERISTICS
Main color
purple
Other colors
brown, colourless, black
becomes very dark to light
Color of streak
white, pink
Luster
vitreous
Hardness
7.0 to 0.0
Density
3.50 to 0.00
Cleavage
indistinct
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.732 - 1.744
Double refraction
0.012
weak, biaxial (+)
visible double refraction
No
Pleochroism
absent
Number of colors
1
Fluorescence
none
CRYSTALS PROPERTIES
triangular pyramidal
crystals system
orthorhombic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is found in the United States, China, Canada.
use in jewelry
It is a collection mineral. It is faceted maintaining the triangular shape close to the natural crystals, colorless or purplish-brown.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo consectetur adipiscing elit. Ut elit tellus, luctus nec.
