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Black Diamonds


smartneil
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Carbonado, frequently recognized as the 'Black Diamond,' is a natural polycrystalline diamond found in alluvial deposits. Its natural color is black or dark grey, and it is more absorbent and permeable in comparison with than other diamonds.

 

The origin of carbonado is a bit controversial and divisive. Some projected theories are as follows:

 

1. Uninterrupted alteration of natural or untreated carbon under high-pressure conditions in the Earth's crust, the most common suppositions for diamond formation.

 

2. Shock metamorphism induced by meteoritic impact at the Earth's surface.

 

3. Radiation-induced diamond formation by impulsive fission of uranium and thorium.

 

4. An origin in interstellar space.

 

But, it’s even said that none of these propositions for Black Diamond foundation was in general accepted in the scientific journalism.

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