fibrous gypsum

См. также в других словарях:

• Gypsum — Infobox mineral name = Gypsum category = Mineral boxwidth = boxbgcolor = caption = Desert rose, 10 cm long formula = Calcium Sulfate CaSO4·2H2O molweight = color = White to grey, pinkish red habit = Massive, flat. Elongated and generally… …   Wikipedia

• gypsum — /jip seuhm/, n. a very common mineral, hydrated calcium sulfate, CaSO4·2H2O, occurring in crystals and in masses, soft enough to be scratched by the fingernail: used to make plaster of Paris, as an ornamental material, as a fertilizer, etc. [1640 …   Universalium

• gypsum —    1. White or colorless mineral or rock composed of the hydrated calcium sulfate, CaSO4●2H2O. Gypsum rock is an evaporite precipitated from sea water and is therefore soluble in water and may contain dissolutional caves. Mineral gypsum is formed …   Lexicon of Cave and Karst Terminology

• gypsum — gyp•sum [[t]ˈdʒɪp səm[/t]] n. mir a soft mineral, hydrous calcium sulfate, CaSO4∙2H2O, occurring in massive or fibrous form and also as alabaster and selenite: used to make plaster of Paris and as a fertilizer • Etymology: 1640–50; < L < Gk …   From formal English to slang

• селенит — — [Англо русский геммологический словарь. Красноярск, КрасБерри. 2007.] Тематики геммология и ювелирное производство EN fibrous gypsum …   Справочник технического переводчика

• satin stone — noun see satin spar * * * satin stone noun A fibrous gypsum • • • Main Entry: ↑satin …   Useful english 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

• Plasterwork — refers to construction or ornamentation done with plaster, such as a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls. This is also sometimes called pargeting. The process of creating plasterwork, called… …   Wikipedia

• Fireproofing — Fireproof redirects here. For the album, see Fireproof (album). For the 2008 film, see Fireproof (2008 film). Fireproofing, a passive fire protection measure, refers to the act of making materials or structures more resistant to fire, or to those …   Wikipedia

• Sulfate minerals — ▪ Table Sulfate minerals name colour lustre Mohs hardness specific gravity alum colourless; white vitreous 2–2½ 1.8 alunite white; grayish, yellowish, reddish, reddish brown vitreous 3½–4 2.6–2.9 alunogen white; yellowish or reddish vitreous to… …   Universalium

• Crystal habit — This article is about the descriptive term used in mineralogy. For the addictive drug, see crystal methamphetamine. Pyrite sun (or dollar) in laminated shale matrix. Between tightly spaced layers of shale, the aggregate was forced to grow in a… …   Wikipedia