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>> Group(s) : sulfates
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Identified by Karsten in 1800, its name comes from the Greek meaning "heavy". It is also called "heavy spar".
It presents a particular phenomenon : the Thermoluminescence, after being heated, it emits visible light.

Exploited sites

This is a very common stone. It is found in France in the Puy de Dome (crystals "honey" of Saint Saturnin), in the Tarn, in the Var, Romania, Germany, Spain, United States, Canada, England, China, Peru ...

See pictures of the mines / other pictures

Use in jewelry

Fragile due to its easy cleavage, it is rarely cut, it is a collection stone.

Daily care and precautions

sensitive to shocks

Looking alike stones

cassiterite , enstatite , orthoclase , titanite , topaz , vesuvianite

Historical healing properties

Applied to the crown chakra, it would help spiritual blooming, it would also affect breathing by making it more fluid, removing toxins, and would regulate metabolism.

Chemical characteristics

barium sulfate

Physical characteristics

Main color : yellow

Other colors : white, blue, brown, orange, green

Honey color is sought as the blue

Color of streak : white

Luster : greasy, resinous

Hardness : 3.0 to 3.5

Density : 4.40 to 4.47

Cleavage : perfect

Fracture : conchoidal, uneven

cleavage very easy, even too easy!

Optical properties

Transparency : transparent, translucent

Refractive Index : 1.636 - 1.650

Double refraction : 0.012

Weak, biaxial (+)

visible double refraction : no

Dispersion : 0.016 (0.009)

Pleochroism : weak

Number of colors : 2

Variable according to the basic colors, we see two shades of color

Fluorescence : moderate

Variable according to the origins


Stubby tabular or lamellar. It also occurs in the form of parallel lamellae and is then known as crested barite.


Crystal system : orthorhombic

Other informations

Astrological sign : Taurus, Libra, Scorpio, Sagittarius

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  • Taurus Taurus
  • Libra Libra
  • Scorpio Scorpio
  • Sagittarius Sagittarius

It helps to be consistent with oneself.