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Article: Carbonado


Formation and Composition of Carbonado

  • Carbonado is a type of diamond composed of microscopic diamond crystals.
  • It is formed through a high-pressure and high-temperature process.
  • Carbonado contains trace amounts of nitrogen and hydrogen.
  • The formation of carbonado is believed to have occurred in an interstellar environment.
  • It is theorized that carbonado may have originated from carbon-rich cosmic dust.

Physical and Chemical Properties of Carbonado

  • Carbonado is the toughest form of natural diamond.
  • It has a porous and irregular structure.
  • The color of carbonado ranges from black to gray.
  • Carbonado has a high density and is heavier than regular diamonds.
  • It exhibits unique optical properties, including strong luminescence.

Extraterrestrial Origin of Carbonado

  • Infrared absorption spectra of carbonado are similar to diamonds of extraterrestrial origin.
  • Carbonado diamonds have been found to contain isotopic anomalies consistent with an extraterrestrial origin.
  • It is believed that carbonado diamonds are fragments of a large asteroid that fell to Earth as meteorites.
  • The presence of nitrogen and hydrogen in carbonado supports its extraterrestrial origin.
  • Carbonado is thought to have formed near carbon stars in interstellar space.

Geological Studies and Research on Carbonado

  • Modern nanoanalytical techniques have provided new insights into the genesis of polycrystalline diamond, including carbonado.
  • Cathodoluminescence imaging has revealed a new columnar texture in carbonado.
  • Research has focused on investigating the physical and chemical properties of carbonado.
  • The carbonado diamond conundrum has been a subject of study in Earth-Science Reviews.
  • Scientists have conducted infrared absorption investigations to confirm the extraterrestrial origin of carbonado diamonds.

Media Coverage and References on Carbonado

  • The New York Times published an article on giant black diamonds of mysterious origin, suggesting their extraterrestrial nature.
  • The BBC News reported on a billion-year-old black diamond sold at auction.
  • Wikimedia Commons has media related to carbonado.
  • Wikisource has the text of the 1911 Encyclopædia Britannica article on carbonado.
  • Various scientific articles and studies have been published on carbonado, including those in the American Mineralogist and The Astrophysical Journal.

Carbonado Data Sources

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