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Lonsdaleite (named in honour of Kathleen Lonsdale), also called hexagonal diamond in reference to the crystal structure, is an allotrope of carbon with a hexagonal ...
Negative curvature bends surfaces outwards like a saddle rather than bending inwards like a sphere.) Recent work has proposed zeolite-templated carbons (ZTCs) may be schwarzites. The name, ZTC, derives from their origin inside the pores of zeolites, crystalline silicon dioxide minerals. A vapor of carbon-containing molecules is injected into ...
Amethyst crystals – a purple quartz Apophyllite crystals sitting right beside a cluster of peachy bowtie stilbite Aquamarine variety of beryl with tourmaline on orthoclase Arsenopyrite from Hidalgo del Parral, Chihuahua, Mexico Aurichalcite needles spraying out within a protected pocket lined by bladed calcite crystals Austinite from the Ojuela Mine, Mapimí, Durango, Mexico Ametrine ...
A meteorite mineral is a mineral found chiefly or exclusively within meteorites or meteorite-derived material. [citation needed] This is a list of those minerals, excluding minerals also commonly found in terrestrial rocks.
Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond.It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite, and amorphous carbon, with minor crystalline precipitates filling pores and occasional reduced metal inclusions. [1]
This list includes those recognised minerals beginning with the letter L.The International Mineralogical Association is the international group that recognises new minerals and new mineral names; however, minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date.
Like ballas diamond, carbonado lacks cleavage planes and its specific gravity varies widely from 2.9 to 3.5. Bort diamonds, found in Brazil, Venezuela, and Guyana, are the most common type of industrial-grade diamond. They are also polycrystalline and often poorly crystallized; they are translucent and cleave easily. [8]
See also External links A Abelsonite: C 31 H 32 N 4 Ni – American physicist Philip Hauge Abelson (1913–2004) Abswurmbachite: Cu 2+ Mn 3+ 6 O 8 SiO 4 – German mineralogist Irmgard Abs-Wurmbach (1938–2020) Adamite: Zn 2 AsO 4 OH – French mineralogist Gilbert Joseph Adam (1795–1881) Agrellite: NaCa 2 Si 4 O 10 F – English optical mineralogist Stuart Olof Agrell (1913–1996 ...