catapleiite
catapleite crystal from Navsarsuk in Greenland
Detailed sheet
catapleiite
Discovered in 1850 in Norway, its name comes from the Greek “kata” and “pleios” which means “with many” in analogy with the fact that it is always associated with other minerals.
CHEMICAL CHARACTERISTICS
Na2Zr[Si3O9] - 2 H2O
hydrated sodium zirconium silicate
PHYSICAL CHARACTERISTICS
Main color
colourless
Other colors
white, grey, yellow
Color of streak
white
Luster
vitreous
Hardness
5.5 to 6.0
Density
2.70 to 2.90
Cleavage
perfect
Fracture
conchoidal
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.590 - 1.630
Double refraction
0.035
definite, biaxial positive
visible double refraction
Yes
Dispersion
-
Pleochroism
absent
Number of colors
1
Fluorescence
variable
sometimes green
CRYSTALS PROPERTIES
prismatic or very flat
crystals system
monoclinic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
Its deposits are highly concentrated in the northern hemisphere: a lot of sites in Norway, Russia, Greenland, United States, Canada … but it is also found in South America, only Brazil, in Africa only in Guinea and South Africa.
use in jewelry
It’s a collection stone
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo consectetur adipiscing elit. Ut elit tellus, luctus nec.
