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Chinese Name:黑鑽石, 黑金剛石
English Name:Black Diamond, Carbonado
Chemical Composition:C (Carbon with minor impurities)
Crystal System:Cubic (Black Diamond: Single Crystal or Carbonado: Polycrystalline)
Hardness:10.0
SG:3.25
RI:2.41
Related Chakra:Root
Locality:Single Crystal(Black Diamond): South Africa, Australia, Canada, Russia, Namibia, India
Polycrystalline (Carbonado): Brazil, Central African Republic
Colour:Black
Luster:
Adamandine
Age:
Carbonado: 2.6 - 3.8 billion years old
Remarks:
Black Diamonds: single crystal (lots of graphite inclusions)
Carbonado: Polycrystalline
Carbonado, came from outer space, geologists have discovered. (Credit: Florida International University)

Sources of Carbonado Diamonds: its origin remains debatable
1. Metamorphism caused by a meteoric impact on the earth's crust during the Precambrian era.
2. The transformation of organic sedimentary carbon into diamond in a cold subducted slab.
3. Radiation-induced diamond formation from organic carbon

Carbonado diamonds are geologically very old: 2.6 to 3.8 billion years old.

Carbonado is only found in central South Africa and Brazil. It has been identified as containing hydrogen, which means that it was created in a hydrogen-based environment like interstellar space.

It is possible that a diamond meteorite struck the Earth at that time, accounting for carbonado’s current distribution.

Researchers Jozsef Garai and Stephen Haggerty have argued that the diamonds in carbonado may have been formed in supernovae explosions, which sent chunks of the material into space and ultimately on a collision course with Earth. The impact of these asteroid-sized diamond bodies with the unique geology and oxygen-poor atmosphere of the Earth 2.6 to 3.8 billion years ago may have formed the polycrystalline material we now call carbonado “black diamonds.”

 
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Functions:
1. Wear as a talisman.
2. A diamond jewelry is believed to be able to increase inner strength, to enhance relationship and to give balance for the wearer.
3. Its like a symbol of self-richness and success, that describes the power and endurance that one has.
4. As kings of all crystals, black diamond possesses deep metaphysical use and purpose.
5. These diamonds have also the control to stop pressure, emotional pain, fear, and defend the users from any harmful energies.
6. It also inspires creativity, imagination, ingenuity, brilliance and inventiveness.
7. Black Diamond enhances powers of other minerals and gem stones.
8. The Black Diamond works especially well with tektite, moldavite, iron meteorite and other stones that are from 'elsewhere'.
   
General care:
1. Diamonds attract grease so avoid contact with hand creams. (may then accumulate dirts)
2. Avoid sharp knocks; Although diamond is very hard, knocked in some directions may cleave or fracture the stone.
3. Cleaning: Use lukewarm plain water, mild soap and a soft brush to scrub behind the stone where dirt can collect.

Reference: Florida International University; (Robinson, 1978; Smith and Dawson, 1985; Kaminskii, 1987; Ozima et al., 1991; Shibata et al., 1993; Daulton and Ozima, 1996; Kamioka etal., 1996) https://www.gemsociety.org/article/black-diamonds/; https://phys.org/news/2007-01-geologists-earth-mysterious-black-diamonds.html; http://gemstonemeanings.us/black-diamond-meaning/; https://en.wikipedia.org/wiki/Carbonado; http://www.souldesign.co.nz/gemstones; https://www.gemselect.com/other-info/black-orlov-diamond.php; http://sciencing.com/identifying-black-diamonds-5507185.html

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