Assertion: siderite | /r/HasProperty | feco
Facets:
Source sentences:
text: Formation of reduced minerals such as magnetite (Fe 3 O 4 ), siderite (FeCO 3 ), vivianite (Fe 3 PO 4 ·8H 2 O), and rhodochrosite (MnCO 3 ), as well as Fe(II) adsorbed onto Fe(III) oxides, has been observed in cultures of Fe(III)- and Mn(IV)-reducing microorganisms (Adeney, 1894; Pfanneberg and Fischer, 1984; Lovley et al., 1987; 1989b; Fischer, 1988; Lovley and Phillips, 1988a) and could contribute to the formation of these minerals in natural environments (Sokolova-Dubina and Deryugina, 1967; Ellwood et al., 1988; Coleman et al., 1993).
text: The reactions for magnesite (MgCO 3 ) and siderite (FeCO 3 ) are shown below.
text: The elemental composition of siderite (FeCO 3 ) has been widely used as a palaeo-environmental proxy, and commonly utilised in the diagnosis of marine influences on Phanerozoic coastal wetland sediments.
text: 3 , 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H 2 O), 55% Fe) or siderite (FeCO 3 , 48.2% Fe).
text: siderite ( FeCO 3 , 48.2% Fe)
text: While the vast majority of carbonate rocks comprise the minerals calcite (CaCO 3 ), aragonite (CaCO 3 ), and dolomite (CaMg(CO 3 ) 2 ), other carbonate minerals, such as siderite (FeCO 3 ) can also be common (Baker, Kassan, & Hamilton, 1995;
text: The siderite (FeCO 3 ) melting curve is determined through multi-anvil experiments at 6–20 GPa, and 1300–1870 °C.
text: The Marcellus consists predominantly of black shale and a few limestone beds and concentrations of iron pyrite (FeS 2 ) and siderite (FeCO 3 ).
text: are: limonite, 2Fe 2 O 3 ·3H 2 O (60% Fe); siderite, FeCO 3 (48.3% Fe); pyrite, FeS 2 (46.6% Fe) .
text: The amount of siderite (FeCO 3 ) with relation to amount of initial sorbent is associated to the CO 2 capture capacity measured as mmol CO 2 /gsorbent.
text: In organic C and 13C/12C analysis of soils containing carbonates such as calcite (CaCO 3 ), dolomite [CaMg(CO 3 ) 2 ] or siderite (FeCO 3 ), effective separation of organic and inorganic C is needed that does not alter the organic matter.
text: The concretions (often called "Toneisensteingeoden", "clay iron stone geodes", in Germany, because siderite, FeCO, is the main component) are much tougher then the enclosing rocks and weather much more slowly, which is typical for many occurrences.
text: It is known that increasing the heating rate (even from 10 to 80°C/min) shifts to higher temperatures, the temperature of the beginning (up to 520-600°C) and late (>1300°C) dissociation of siderite (FeCO 3 ), increasing the duration of the heat treatment because of the overlapping processes of dissociation of siderite on the processes of recovery and plating iron, as generated by the dissociation of CO 2 lowers the reduction potential of the gas phase.
text: Low-grade iron ores also exist, such as limonite, which is hematite bonded to water molecules at 50% to 66% iron, and siderite, FeCO 3 , that is 48% iron.