gaspeite
rough gaspeite from Quebec, Canada
gaspeite from Quebec in Canada cut in cabochon
Detailed sheet
gaspeite
It is named after a region of Quebec, the Gaspé Peninsula where it was discovered in 1966.
CHEMICAL CHARACTERISTICS
(Ni,Mg,Fe)[CO3]
iron, magnesium, nickel carbonate
PHYSICAL CHARACTERISTICS
Main color
green
Other colors
brown, yellow
Color of streak
yellow, green
Luster
vitreous
Hardness
4.5 to 5.0
Density
3.50 to 3.80
Cleavage
perfect
Fracture
uneven
OPTICAL PROPERTIES
Transparency
opaque, translucent
Refractive index
1.610 - 1.820
Double refraction
0.210
definite uniaxial negative
visible double refraction
No
Pleochroism
absent
Number of colors
1
Fluorescence
none
CRYSTALS PROPERTIES
rare, often in dense masses
crystals system
hexagonal
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is found at the Eugenia Mine in Spain (near Tarragon), South Africa in the Limpopo region, and especially in Australia (Tasmania).
use in jewelry
It is cut in facets or cabochon for collection.
Since the discovery of a large deposit in Australia, it is widely used to make balls, necklaces and decorative carved objects.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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