enstatite
round cut Bronzite of Mongolia
enstatite crystals from Norway
cabochon of hypersthene
polished hypersthene slice
cabochon of bronzite from Africa
gas – liquid inclusions, irregular tubes
gas – liquid inclusions, irregular tubes
Detailed sheet
enstatite
Being difficult to melt, it was awarded the name of Greek word meaning “resistant” without really understanding why.
The more it contains iron, more the color becomes dark and black. The more its iron content increases, more its density increases. The enstatite forms an isomorphous series with ferrosilite, enstatite being the magnesian pole and ferrosilite the ferrous pole.
We know a gray-green variety presenting this speckle type phenomenon called “cat’s eye” like the starry enstatite.
The bronzite variety, of a dark bronze color, is an iron and magnesium silicate which has a metallic luster, a refractive index and a higher density.
The variety called clinoenstatite or hypersthene, greenish-brown, iron-rich (up to 3.5 density, hardness up to 6, refractive index up to 1.74 while that of the enstatite does not exceed 1.68 ) has a strong reddish brown pleochroism.
CHEMICAL CHARACTERISTICS
Mg2Si2O6
magnesium inosilicate
PHYSICAL CHARACTERISTICS
Main color
brown
Other colors
grey, colourless, yellow, red, green
Color of streak
white, brown
Luster
vitreous
Hardness
5.0 to 6.0
Density
3.20 to 3.40
Cleavage
good
Fracture
uneven
OPTICAL PROPERTIES
Transparency
translucent, transparent
The gem variety is yellowish brown or greenish for hypersthene
Refractive index
1.650 - 1.740
Double refraction
0.009
weak, biaxial (+)
visible double refraction
No
Pleochroism
definite
Number of colors
2
green, green - yellow
Absorption spectrum
547 - 505
506-547 for the bronzite. 547-505 for the hypersthene
brown - green enstatite spectrum system
brown enstatite spectrum system
Fluorescence
none
Inclusions
small metal strips
CRYSTALS PROPERTIES
prismatic
crystals system
orthorhombic
OTHER INFORMATIONS
Astrological sign
Capricorn, Leo, Virgo
APPROACHING GEMS
Exploited
sites
It is found in many countries, including France, at Moun Caou (Pyrénées Atlantiques), in Prades (Arriege), Burma, Brazil, Tanzania, Kenya, United States, Mexico, Sri Lanka, South Africa, Canada. The Bronzite variety is found in Mongolia at Tairat in the Hangai Mountains.
use in jewelry
Cut faceted, is a collection stone. There are that are cut cabochons to highlight a shimmer or a phenomenon of asterism.
Daily care
and precautions
Fragile, low hardness
Historical
healing properties
It would be a stone of wisdom, of balance, it would help improve relations and avoid conflicts. It would help to make the right decisions in good conscience. On the heart chakra it would have this calming effect, on the plexus chakra it would contribute to the regulation of liver and intestines.
Other
Gems
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notre site web
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