aegirine
aegirine crystals from Zomba in Malawi
aegirine crystals on eudialyte from the Kola Peninsula in Russia
Detailed sheet
aegirine
Found in 1821 by P.Ström and named “acmite” from the Greek “point, edge” in reference to the typical pointed crystals.
But in 1835 Berzelius named it aegirine after Aegir, the Teutonic god of the sea.
Richer in sodium than augite, it oxydizes itself, pruducing chlorite, one of the main inclusions in quartz.
CHEMICAL CHARACTERISTICS
(Na,Fe)[Si2O6]
inosilicate of sodium and iron
PHYSICAL CHARACTERISTICS
Main color
green
Other colors
black
very strong bottle green
Color of streak
grey, yellow, green
Luster
resinous, vitreous
Hardness
6.0 to 0.0
Density
3.40 to 3.55
Cleavage
good
Fracture
uneven
OPTICAL PROPERTIES
Transparency
opaque, translucent
Refractive index
1.700 - 1.800
Double refraction
0.030
definite, biaxial (-)
visible double refraction
No
Dispersion
+
Pleochroism
definite
Number of colors
3
strong green, yellow green, brown
Fluorescence
none
CRYSTALS PROPERTIES
elongated prismatic up to 20 cm, acicular crystals
crystals system
monoclinic
OTHER INFORMATIONS
APPROACHING GEMS
Exploited
sites
Found in Norway where it had been discovered (Rundemyr), in France (Montgenèvre close to Briançon, Valette close to Riom in the Cantal department, Azinières close to Millau in the Aveyron department).
Also found in Canada (Mont Saint-Hilaire), in Zambia, in Brazil, in the USA, in China, in Mongolia…
use in jewelry
Faceted or cabochon cut, like most of the dark stones.
Historical
healing properties
It would increase the will to fight against external aggressions, both physical and mental. It would promote people returning to their personal values and to the realities surronding them, protecting them from negative influences. It would help in following personal convictions and morality and to do that which is required; it actually provides the strength for one to be true to oneself and strengthen integrity and conviction. This would be the stone of the will power, of the morality.
On the heart chakra aegirine would bring liberty of thought, free will, independence, lucidity. Same as epidote, it is related to the liver and to the gall bladder on which it would act positively.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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