glassy luster

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• Barrerite — Infobox mineral name = Barrerite Category = Tectosilicate family = Zeolite boxwidth = 50 boxbgcolor = blue imagesize = 200 caption = Barrerite from Kuiu Island, Alaska, USA. formula = Na,K,Ca)2Al2Si7O18·6(H2O) color = White, Pink system =… …   Wikipedia

• Vitreous — refers to a material in an amorphous, glassy state (in contrast to a crystalline state). In such a state, the constituent atoms do not exhibit the long range order that is characteristic of crystals. However, they still exhibit short range order… …   Wikipedia

• Aegirine — crystals in matrix General Category Silicate mineral, Pyroxene …   Wikipedia

• devitrify — transitive verb Etymology: French dévitrifier, from dé de + vitrifier to vitrify Date: 1832 to deprive of glassy luster and transparency; especially to change (as a glass) from a vitreous to a crystalline condition • devitrification noun …   New Collegiate Dictionary

• Anandite — Anandite, also known as Anandite 2O in English and Adandit or Anandit in German, or Анандит in Russian,cite web|url=http://www.mindat.org/min 456.html|title=Anandite mineral information and data|accessdate=2008 05 04|author=Jolyon Ida… …   Wikipedia

• Deoptilia heptadeta — Scientific classification Kingdom: Animalia Phylum: Arthropoda Class: Insecta …   Wikipedia

• dolomite — [dō′lə mīt΄, däl′əmīt] n. [after Déodat de Dolomieu (1750 1801), Fr geologist] 1. a light colored, semihard, rhombohedral mineral, calcium magnesium carbonate, CaMg(CO3) 2, with a glassy luster and perfect cleavage, used in making cement,… …   English World dictionary

• Selenite — This article is about the mineral: for other meanings, see Selenite (disambiguation). Selenite, satin spar, desert rose, and gypsum flower are four varieties of gypsum; all four varieties show obvious crystalline structure. The four crystalline… …   Wikipedia

• Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …   Wikipedia

• Allotropes of carbon — Eight allotropes of carbon: a) Diamond, b) Graphite, c) Lonsdaleite, d) C60 (Buckminsterfullerene or buckyball), e) C540, f) C70, g) Amorphous carbon, and h) single walled carbon nanotube or buckytube. This is a list of the allotropes of carb …   Wikipedia

• Tachylite — (also spelled tachylyte) is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. It is a basic type of igneous rock that is decomposable by acids and readily fusible. The color is a… …   Wikipedia