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The Mineral Bornite

bornite picture

bornite picture

The mineral Bornite is otherwise known as peacock ore, and is a sulfide mineral having a chemical composition of Cu5FeS4. It forms into crystals in the orthorhombic arrangement (pseudo-cubic). The color of the newly formed surfaces of the Bornite is brownish to copper- red; it gets tarnished into other iridescent color shades varying in places from blue to purple. Because of its attractive glittering colors, it achieved the nickname of  “peacock ore.”

Chemical Formula  
Cu5FeS4


Derivation of Name  
Bornite was initially found in the year 1725  in the Krushne Hory Mountains (Erzgebirge), Bohemia, presently called Czech Republic and Karlovy Vary Region. In the year 1845, Ignas Von Born (1742-1791) a mineralogist  gave it the name Bornite.


Occurrence         
Bornite is a familiar mineral endemic in the deposits of copper ore. The other places where it is found are in basic invasive forms in contact with metamorphic deposits, in dikes, in pegmatites and in quartz veins.


Gemology  
Bornite or peacock is a mineral of copper, mined from Mexico.  It is famous for its sparkling colors.  Miners of the earlier days named it as peacock ore. The Bornite stone brings joy and happiness and transforms your life into positive energy and radiates it to others. In the market this stone is called the stone of joyfulness. You get a feeling  that the existing situation you are in is the right situation for you. In addition, it gives you the power to view and receive happiness at all times.


This Bornite or peacock ore is one among the powerful stones for healing in the kingdom of minerals. When applied to any chakra, it aligns with other chakras. Its peacock ore energy generates a circulatory motion in the clockwise direction. In spite of it being placed on one chakra, it affects the six other chakras as well.


Source 
It is found all over the world in the copper ores in prominent crystal localities of Montana, Butte and Bristol and  Connecticut in the U.S. Besides, it also occurs in the Carn Brea mine, Illogan mine and other localities of Cornwall in England. Massive crystals are obtained from the eastern Tirol, Frossnitz Alps, Austria; Lomagundi, and the Mangula mine, Zimbabwe.  You can also find it in the West Coast of Tasmania, Morocco and in Dzhezkazgan, Kazakhstan. In the Pilbara district of Western Australia, it is obtained within the Hematite.


Mineralogy  
The mineral Bornite is an essential ore of copper that occurs widely in the deposits of porphyry copper (Orebodies formed from hydrothermal fluids) together with the ordinary Chalcopyrite (a copper iron sulfide mineral that crystallizes in the tetragonal system). Bornite and Chalcopyrite are together specifically substituted with Covellite and Chalcocite in the copper deposit’s of the supergene enrichment zone. Besides,  Bornite is in addition found in the mafic igneous rocks as disseminations, in contact with metamorphic deposits of skarn (silicate rocks with calcium content of any age.), in sedimentary cupriferous shales and in pegmatites. Bornite has a copper content of 63% of the mass, as such, it is an important ore.

Color           
Bronze brown, copper red and purple

Density                              
5.09 g/cm3

Mohs scale hardness
3 - 3.25

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