augelite
liquid like inclusions, healing fissures
Detailed sheet
augelite
Its name comes from the Greek “auge” which means bright, like the appearance of its cleavage.
CHEMICAL CHARACTERISTICS
Al2[PO4](OH)3
basic aluminum phosphate
PHYSICAL CHARACTERISTICS
Main color
colourless
Other colors
white, blue, brown, grey, yellow, pink
Color of streak
white
Luster
vitreous
Hardness
4.5 to 5.0
Density
2.70 to 2.75
Cleavage
perfect
Fracture
uneven
pearly on the cleavage
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.570 - 1.590
Double refraction
0.014
definite, biaxial (+)
visible double refraction
Yes
Pleochroism
absent
Number of colors
1
Fluorescence
none
CRYSTALS PROPERTIES
tabular
crystals system
monoclinic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is found in Japan, Rwanda, Brazil (Minas Gerais, Sapucaia Mine), Sweden, Austria, Peru, the United States.
use in jewelry
fateted cut, it is a collection stone
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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