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2. Allotropes of carbon - Wikipedia

   en.wikipedia.org/wiki/Allotropes_of_carbon

   Diamond is clear and transparent, but graphite is black and opaque. Diamond is the hardest mineral known (10 on the Mohs scale), but graphite is one of the softest (1–2 on Mohs scale). Diamond is the ultimate abrasive, but graphite is soft and is a very good lubricant.

3. Lonsdaleite - Wikipedia

   en.wikipedia.org/wiki/Lonsdaleite

   In diamond, all the carbon-to-carbon bonds, both within a layer of rings and between them, are in the staggered conformation, thus causing all four cubic-diagonal directions to be equivalent; whereas in lonsdaleite the bonds between layers are in the eclipsed conformation, which defines the axis of hexagonal symmetry.

4. Allotropy - Wikipedia

   en.wikipedia.org/wiki/Allotropy

   Diamond and graphite are two allotropes of carbon: pure forms of the same element that differ in crystalline structure.. Allotropy or allotropism (from Ancient Greek ἄλλος (allos) ' other ' and τρόπος (tropos) ' manner, form ') is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements.

5. Material properties of diamond - Wikipedia

   en.wikipedia.org/wiki/Material_properties_of_diamond

   Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence). Diamond is the hardest naturally occurring material known.

6. Category:Allotropes of carbon - Wikipedia

   en.wikipedia.org/wiki/Category:Allotropes_of_carbon

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7. Category:Allotropes - Wikipedia

   en.wikipedia.org/wiki/Category:Allotropes

   This page was last edited on 22 December 2021, at 07:21 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

8. Superdense carbon allotropes - Wikipedia

   en.wikipedia.org/wiki/Superdense_carbon_allotropes

   The following allotropes belong to the second group: MP8, [8] OP8, [8] SC4, [9] BC-8 [10] and (9,0). [11] These are hypothetically quasi-stable at the high pressure. BC-8 carbon is not only a superdense allotrope but also one of the oldest hypothetical carbon structures; initially it was proposed in 1984 in the work R. Biswas et al. [10] The MP8 structure proposed in the work J. Sun et al. [8 ...

9. Template:Infobox element/symbol-to-allotropes - Wikipedia

   en.wikipedia.org/.../symbol-to-allotropes

   allotrope article |format=wl infobox text |format=infobox; 5 boron: Allotropes of boron: α-, β-rhombohedral, β-tetragonal (and more) 6 carbon: Allotropes of carbon: graphite, diamond and more (see Allotropes of carbon) 7 nitrogen: Allotropes of nitrogen: see § Allotropes: 8 oxygen: Allotropes of oxygen: O 2, O 3 and more (see Allotropes of ...