chalcopyrite
crystal of oxidized chalcopyrite in malachite, France
chalcopyrite from Huaron Perou
oxidation of chalcopyrite from France
Chalcopyrite crystals from La Gardette, France
Chalcopyrite crystals from La Gardette, France
Detailed sheet
chalcopyrite
Its name comes from the Greek “chalcos”, which means copper and pyrite: this is a copper pyrites.
It was identified in 1725 by Henckel.
Chalcopyrite may contain gold in small quantities, it is then exploited for this precious metal.
CHEMICAL CHARACTERISTICS
CuFeS2
copper iron sulfide mineral
PHYSICAL CHARACTERISTICS
Main color
yellow
by oxidizing it becomes iridescent
Color of streak
black, green
Luster
metallic
Hardness
3.5 to 4.0
Density
4.10 to 4.30
Cleavage
indistinct
Fracture
conchoidal
OPTICAL PROPERTIES
Transparency
opaque
Refractive index
0.000 - 0.000
Double refraction
0.000
refractive index and birefringence illegible
visible double refraction
No
Pleochroism
absent
Number of colors
1
Fluorescence
none
CRYSTALS PROPERTIES
scalenohedral often well shaped
crystals system
tetragonal
OTHER INFORMATIONS
Astrological sign
Aries, Sagittarius, Scorpio, Virgo
APPROACHING GEMS
Exploited
sites
It is one of the most common copper ores.
It was found particularly well crystallized in the mine of La Gardette, Le Bourg d’Oisans in France, Spain, United States, Peru, China …
use in jewelry
As the pyrite it can be faceted or cabochon cut. Its tendency to oxidize naturally in contact with air and to become iridescent, restrict its use.
Historical
healing properties
Applied oin the third eye Chakra or the Summit, it would be very uplifting for the mind, by acting on both the blood supply to the brain but also on the transmission of nerve impulses. It would improve the vision, thinking, reflexes, alertness.
In the form of oil, it would have a fungicidal action due to copper, a property that had been discovered in antiquity by the Egyptians, who have also used copper for what is considered the first intrauterine devices ..
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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