amazonite
amazonite crystal from Burma
amazonite crystal from Brazil
African polished amazonite
African amazonite cut in cabochon
cabochon of amazonite from Brazil
Detailed sheet
amazonite
This is a perthite, variety of feldspar, so called because discovered in the Amazon, but not near the Amazon River.
It is part of the family of microclines.
The name microcline comes from the Greek “small slope” has been given by Breithaupt in 1830 in reference to its crystallization in the triclinic system.
It was long believed that its color was due to copper but today we know that its color is due to lead. The largest known crystal weighing 700 kg is exposed to the Natural History Museum in Paris.
CHEMICAL CHARACTERISTICS
K[AlSi3O8]
potassium aluminum silicate
PHYSICAL CHARACTERISTICS
Main color
green
Other colors
blue
green to bluish green with silvery white veins of albite almost parallel.
Color of streak
white
Luster
pearly, vitreous
Hardness
6.0 to 6.1
Density
2.56 to 2.58
Cleavage
perfect
Fracture
uneven
perfect cleavage, pearly surface, easy according to two directions and so it tends to leaf removal.
OPTICAL PROPERTIES
Transparency
opaque, translucent
opaque to translucent and rarely transparent. Its luster is vitreous.
Refractive index
1.522 - 1.530
Double refraction
0.008
very weak, biaxial (+)
visible double refraction
No
Dispersion
0.018(0.011)
Pleochroism
absent
Number of colors
1
In fine streaks. very light pleochroism
Fluorescence
weak
olive - green, slightly orange on white albite streaks
CRYSTALS PROPERTIES
triclinic, prismatic and sometimes squat prismatic biterminal or twinned crystals
crystals system
triclinic
OTHER INFORMATIONS
Astrological sign
Capricorn, Gemini, Taurus
APPROACHING GEMS
Exploited
sites
It is found in the United States (Colorado), Brazil (Mine of Santa Maria de Itabira), Canada, India, Burma, Kenya, Madagascar, Namibia, Russia (a very strong colored and with broader albite lamellae samples are found in museums all over the world), Austria (Styria).
use in jewelry
It is popular in jewelry and for decoration because of the intensity of his tone light green to green-turquoise.
It is cut in different shapes : slabs, cabochons, ashtrays, bowls, small animals. At the Louvre Museum in Paris, we find a beautiful mirror handle of Egyptian amazonite.
Daily care
and precautions
Easy to maintain, however, attention to the cleavage.
imitations and
treatments
We do not know of synthetic amazonite to date. Some were heat treated at 300 ° C to improve its color.
Historical
healing properties
Close to the turquoise, amazonite would possess a greater tendency to tenderness because of its pale green.
It would put in a serene and joyful mood. On the Heart Chakra, it would provide a sense of affection for a loved one with each other. On the throat chakra, it would immediately trigger tenderness, gentleness and encourage love relations .
It would also enhance the vitality and promote independence.
Other
Gems
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