![neptunite emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/neptunite-taille-emeraude114-150x150.png)
![emerald cut pollucite from afghanistan](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pollucite-afghanistan92-300x200.png)
pollucite
![pollucite crystal from the Isle of Elba in Italy](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pollucite-cristal-ile-elbe-italie-300x200.jpg)
pollucite crystal from the Isle of Elba in Italy
![](https://www.patrickvoillot.com/wp-content/uploads/2021/04/zoom-in.png)
![](https://www.patrickvoillot.com/wp-content/themes/astra-child/images/icon-image.png)
CHEMICAL CHARACTERISTICS
(Cs,Na)2Al2[Si4O12] - (H2O)
alumino-silicate containing cesium
![](https://www.patrickvoillot.com/wp-content/uploads/2021/04/zoom-in.png)
![](https://www.patrickvoillot.com/wp-content/themes/astra-child/images/icon-image2.png)
PHYSICAL CHARACTERISTICS
Main color
colourless
Other colors
white, blue, brown, yellow, purple
Color of streak
white
Luster
greasy, resinous, vitreous
Hardness
6.5 to 7.0
Density
2.85 to 2.95
Cleavage
indistinct
Fracture
conchoidal
![](https://www.patrickvoillot.com/wp-content/uploads/2021/04/zoom-in.png)
![](https://www.patrickvoillot.com/wp-content/themes/astra-child/images/icon-image3.png)
OPTICAL PROPERTIES
Transparency
transparent
Refractive index
1.518 - 1.525
Double refraction
0.000
none, isotropic
visible double refraction
No
Dispersion
0,012(0.007)
Pleochroism
absent
Number of colors
1
Fluorescence
variable
can be pink - orange
![](https://www.patrickvoillot.com/wp-content/uploads/2021/04/zoom-in.png)
![](https://www.patrickvoillot.com/wp-content/themes/astra-child/images/icon-image4.png)
CRYSTALS PROPERTIES
When it is really crystallized it’s hexoctahedral
![](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cristal-pollucite.gif)
crystals system
cubic
![](https://www.patrickvoillot.com/wp-content/uploads/2021/04/zoom-in.png)
![](https://www.patrickvoillot.com/wp-content/themes/astra-child/images/icon-image5.png)
OTHER INFORMATIONS
![](https://www.patrickvoillot.com/wp-content/uploads/2021/04/zoom-in.png)
![](https://www.patrickvoillot.com/wp-content/themes/astra-child/images/icon-image6.png)
APPROACHING GEMS
Exploited
sites
It is found in Pakistan, Afghanistan, Brazil (Vulture Mine), China (Jiangxi), Russia (Eastern Siberia and the Kola Péninisule), Sweden, England and the United States, Canada, Italy.
use in jewelry
faceted when transparent, it’s a collection stone
Historical
healing properties
.
Venez visitez
notre site web
voillot-joaillier.fr
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