CHEMICAL CHARACTERISTICS
Li[AlSi2O6] - H2O
hydrated aluminium lithium tektosilicate
PHYSICAL CHARACTERISTICS
Main color
colourless
Other colors
white
white
Color of streak
white
Luster
vitreous
Hardness
6.0 to 0.0
Density
2.30 to 0.00
Cleavage
perfect
Fracture
conchoidal
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.510 - 1.523
Double refraction
0.012
weak biaxial (-)
visible double refraction
No
Pleochroism
absent
Number of colors
1
Fluorescence
weak
yellow
CRYSTALS PROPERTIES
prismatic biterminal
crystals system
triclinic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is found in the United States, North Carolina (Foote Mine, near Cleveland), and Zimbabwe where it was discovered near Bikita, Masvingo District.
use in jewelry
it’s a collection stone
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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