. "[BF7D511FE29C]" . . "Posp\u00ED\u0161il, Jaroslav" . . . "Specification of some common iron oxides by their optical spectra and colours"@en . "The main contribution of the present article consists in systematic considerations about the typical colour properties of basic iron (Fe) oxides compounds alfa-Fe2O3 (haematite), gama-Fe2O3 (maghemite), alfa-FeOOH (goethite) and gama-FeOOH (lepidocrocite)."@en . "Specification of some common iron oxides by their optical spectra and colours"@en . "Jemn\u00E1 mechanika a optika" . . "543850" . "The main contribution of the present article consists in systematic considerations about the typical colour properties of basic iron (Fe) oxides compounds alfa-Fe2O3 (haematite), gama-Fe2O3 (maghemite), alfa-FeOOH (goethite) and gama-FeOOH (lepidocrocite)." . "RIV/61989592:15310/05:10212605!RIV11-MSM-15310___" . "0447-6441" . "CZ - \u010Cesk\u00E1 republika" . . . . "2"^^ . "RIV/61989592:15310/05:10212605" . "2"^^ . . "8"^^ . "50" . . . "P(LN00A015), Z(AV0Z10100522)" . "iron oxides, optical spectrum"@en . "Specification of some common iron oxides by their optical spectra and colours" . "Specification of some common iron oxides by their optical spectra and colours" . "Hrd\u00FD, Jan" . . . . "9" . "15310" . . . .