barytocalcite
Detailed sheet
barytocalcite
Discovered in 1824 in England, it was named after its composition, it contains barium as much as barite and it is a carbonate (calcium, as calcite, but with the addition of barium).
CHEMICAL CHARACTERISTICS
BaCa(CO3)2
barium calcium carbonate mineral
PHYSICAL CHARACTERISTICS
Main color
yellow
Other colors
white, brown
Color of streak
white, grey, green
Luster
resinous, vitreous
Hardness
4.0 to 0.0
Density
3.66 to 0.00
Cleavage
perfect
Fracture
conchoidal
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.520 - 1.686
Double refraction
0.160
strong biaxial (-)
visible double refraction
Yes
Dispersion
-
Pleochroism
absent
Number of colors
1
Fluorescence
variable
variable according to origins
CRYSTALS PROPERTIES
prismatic
crystals system
monoclinic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is found in China (Mongolia, Shaanxi), in southern Australia, Tyrol in Austria, Saxony, Germany, England, United States (Arkansas, New Mexico and California), Canada (Ontario, Yukon, British Columbia).
use in jewelry
it’s faceted cut, but it is fragile.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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