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{{POTD {{{1|{{{style|default}}}}}} {{POTD {{{1|{{{style|default}}}}}}
|image=Diamond (side view).png |image=Diamond (side view).png
|size=380 |size=400
|title=] |title=]
|texttitle=Diamond |texttitle=Diamond
|caption= |caption=


''']''' is a ] with its atoms arranged in a ] called ]. Diamond is ] at ]: it converts to the ] form ] under those conditions, but at a negligible rate. Diamond has the highest ] and ] of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. In addition to its industrial uses, diamond is much sought-after ] for use in jewelry. Most natural diamonds have ages between 1 billion and 3.5 billion years and formed at depths between 150 and 250 kilometres in the ]. They were then carried to the surface more recently in volcanic eruptions and deposited in ]s known as ]s and ]s. This photograph shows the real-color ] of a diamond, in a ]. ''']''' is a ] with its atoms arranged in a ] called ]. Diamond is ] at ]: it converts to the ] form ] under those conditions, but at a negligible rate. Diamond has the highest ] and ] of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. In addition to its industrial uses, diamond is much sought-after ] for use in jewelry. Most natural diamonds have ages between 1&nbsp;billion and 3.5&nbsp;billion years and formed at depths between 150 to 250 kilometres (93 to 155&nbsp;mi) in the ]. They were then carried to the surface more recently in volcanic eruptions and deposited in ]s known as ]s and ]s. This photograph shows the ] of a diamond in real colour, taken with the use of a ].


|credit=Photograph credit: ] |credit=Photograph credit: Pavel Somov
}}<noinclude>] }}<noinclude>]



Revision as of 23:09, 27 December 2023

Picture of the day archives: 2023 December < 2023 December 29 2023 December 31 > Picture of the day Diamond Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is metastable at standard temperature and pressure: it converts to the chemically stable form graphite under those conditions, but at a negligible rate. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. In addition to its industrial uses, diamond is much sought-after as a gemstone for use in jewelry. Most natural diamonds have ages between 1 billion and 3.5 billion years and formed at depths between 150 to 250 kilometres (93 to 155 mi) in the Earth's mantle. They were then carried to the surface more recently in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites. This photograph shows the cathodoluminescence of a diamond in real colour, taken with the use of a scanning electron microscope.Photograph credit: Pavel Somov ArchiveMore featured pictures...

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