scorodite
scorodite from Concaption del Oro in Mexico
Detailed sheet
scorodite
Discovered in 1818, it was named after the Greek “skorodon” meaning garlic because when heated it gives off the odor of arsenic close to that of garlic.
CHEMICAL CHARACTERISTICS
Fe[AsO4] - 2(H2O)
hydrated iron arsenate mineral
PHYSICAL CHARACTERISTICS
Main color
purple
Other colors
blue, grey, yellow, green
Color of streak
white
Luster
greasy, resinous, vitreous
Hardness
3.5 to 4.0
Density
3.28 to 3.30
Cleavage
none
Fracture
uneven
on the fracture, presence of elongated planar portions
OPTICAL PROPERTIES
Transparency
opaque, translucent
Refractive index
1.730 - 1.820
Double refraction
0.030
definite, biaxial (+)
visible double refraction
Yes
Dispersion
+
Pleochroism
weak
Number of colors
2
blue - green, blue - purple
Fluorescence
none
CRYSTALS PROPERTIES
prismatic very often biterminal
crystals system
orthorhombic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
It is found in China, Russia, Brazil, Chile, Peru, Iran, Slovakia, England.
use in jewelry
collection stone
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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