rhodonite crystal gem from Broken Hill in Australia
rhodonite
crystallized rhodonite
red rhodonite crystal from Broken Hill in Australia
rhodonite cabochon from Africa
rhodonite from Lafaiete in Brazil cushion cut
rhodonite crystal gem from Broken Hill in Australia
rhodonite
Detailed sheet
rhodonite
Its name comes from the Greek “rhodon” for “ rose “, as for rhodochrosite. dark pink color, light pink, with black dendritic inclusions of manganese oxide. Soluble in acids which discolor it, easily fuses with a torch.
Varieties of colorful gems come from Australia and more recently Brazil.
Rhodonite has the same composition as the pyroxmangite formed in conditions of higher pressure and temperature.
CHEMICAL CHARACTERISTICS
(Mn,Ca,Fe,Mg)SiO3
manganese inosilicate
PHYSICAL CHARACTERISTICS
Main color
pink
Other colors
red
with gray areas of manganese oxide
Color of streak
white
Luster
greasy, vitreous
Hardness
5.5 to 6.5
Density
3.40 to 3.75
Cleavage
perfect
Fracture
conchoidal, uneven
OPTICAL PROPERTIES
Transparency
opaque, translucent, transparent
a transparent gem variety exists
Refractive index
1.715 - 1.760
Double refraction
0.010
weak, biaxial (+)
visible double refraction
No
Pleochroism
absent
Number of colors
1
Absorption spectrum
548 - 503 - 455
pink rhodonite spectrum system
red rhodonite spectrum system
Inclusions
manganese oxide in little veins
CRYSTALS PROPERTIES
tabular and columnar, mostly in compact aggregates.
crystals system
triclinic
OTHER INFORMATIONS
Astrological sign
Aries, Capricorn, Leo, Libra, Virgo
APPROACHING GEMS
Exploited
sites
South Africa, Australia (New South Wales), Canada, United States (New Jersey), Finland, Japan, Madagascar, Mexico, Russia (Urals), Sweden, Tanzania, Brazil.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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