botryoidal iron ore

скорлуповатый железняк

English-Russian dictionary of geology. 2011.

Смотреть что такое "botryoidal iron ore" в других словарях:

  • Limonite — is an ore consisting in a mixture of hydrated iron(III) oxide hydroxide of varying composition. The generic formula is frequently written as FeO(OH)·nH2O, although this is not entirely accurate as limonite often contains a varying amount of oxide …   Wikipedia

  • Goethite — Infobox mineral name = Goethite category = boxwidth = boxbgcolor = imagesize = caption = Goethite,from Minas Gerais, Brazil formula = α IronOxygen(Hydroxide) molweight = color = Yellowish to reddish to dark brown habit = system = Orthorhombic… …   Wikipedia

  • Chalcopyrite — Twinned chacopyrite crystal from the Camp Bird Mine, Ouray County, Colorado (size:5.2 x 3.6 x 2.7 cm) General Category Sulfide mineral …   Wikipedia

  • Smithsonite — A specimen of smithsonite from Kelly mine, Socorro County, New Mexico, USA . General Category Carbonate mineral …   Wikipedia

  • Psilomelane — Infobox mineral name = Psilomelane category = boxwidth = boxbgcolor = caption = A native sample of psilomelane formula = The general formula Ba(Mn2+)(Mn4+)8O16(OH)4 or as (Ba,H2O)2Mn5O10 Barium Manganese Oxide Hydroxide molweight = 590.03 gm… …   Wikipedia

  • Fluorite — General Category Halide mineral Chemical formula CaF2 …   Wikipedia

  • Pyrolusite — Infobox mineral name = Pyrolusite category = boxwidth = boxbgcolor = imagesize = caption = Pyrolusite Mineral with Dendrite (height of sample 9 cm) formula = manganese dioxide, MnO2 molweight = color = Darkish, black to lighter grey, somethimes… …   Wikipedia

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