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

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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