serendibite
serendibite crystals from U.S.
solid like inclusions
staining – type inclusion
Detailed sheet
serendibite
Discovered in Sri Lanka in 1902, its name comes from “Serendib” the name of Sri Lanka in Arabic. Usually of a color without interest or very dark brown, there is anyways a variety of a beautiful light blue color.
CHEMICAL CHARACTERISTICS
Ca4(Mg,Al)6O4[Si6B3Al3036]
alumino-boro-silicate of calcium, magnesium and aluminum
PHYSICAL CHARACTERISTICS
Main color
blue
Other colors
yellow, black
Color of streak
white
Luster
vitreous
Hardness
6.0 to 7.0
Density
3.40 to 3.50
Cleavage
none
Fracture
uneven
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.690 - 1.710
Double refraction
0.005
very weak, biaxial (+)
visible double refraction
No
Dispersion
+
Pleochroism
strong
Number of colors
3
yellow-green-blue, light shades, deep blue, there are easily two shades of color
Fluorescence
none
CRYSTALS PROPERTIES
few small tabular crystals often twinned
crystals system
triclinic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
This is a rare stone, it is found in Sri Lanka at Gangapitiya, in California and the state of New York in the United States, in Madagascar and in Burma at Mogok.
use in jewelry
it is cut in facets, and because of its hardness it can be used in jewelry, but the beautiful aquamarine – blue stones are very small and rare.
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.
