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