![brasilianite from Brazil emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/brasilianite-taille-emeraude-bresil229-150x150.png)
![hambergite rectangular cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/hambergite-taille-rectangulaire166-300x200.png)
hambergite
![hambergite crystal of Madagascar](https://www.patrickvoillot.com/wp-content/uploads/2021/03/hambergite-cristal-madagascar-300x200.jpg)
hambergite crystal of Madagascar
![hambergite from Burma cushion cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/hambergite-taille-coussin-birmanie-300x197.jpg)
hambergite from Burma cushion cut
![highlight of the splitting edges phenomenon due to the high birefringence](https://www.patrickvoillot.com/wp-content/uploads/2021/03/inclusions-hambergite-300x200.jpg)
highlight of the splitting edges phenomenon due to the high birefringence
![liquid like inclusions](https://www.patrickvoillot.com/wp-content/uploads/2021/03/inclusions-hambergite-2-300x200.jpg)
liquid like inclusions
![](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
BeBO3(OH)
beryllium borate mineral
![](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
grey, yellow
Color of streak
white
Luster
vitreous
Hardness
7.5 to 0.0
Density
2.35 to 0.00
Cleavage
perfect
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
1.554 - 1.630
Double refraction
0.073
strong biaxial (+)
visible double refraction
Yes
Dispersion
0.015(0.010)
Pleochroism
absent
Number of colors
1
Fluorescence
variable
sometimes 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
prismatic crystals elongated and many-faceted, often striated
![](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cristal-hambergite.gif)
crystals system
orthorhombic
![](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 Norway (Fjord Langesund) in Brazil, the United States, India, Madagascar (Imalo, maharitra) …
use in jewelry
it is sought after specially by collectors
Venez visitez
notre site web
voillot-joaillier.fr
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