Limonite (/ˈlaɪməˌnaɪt/) is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition. The generic formula is frequently...
15 KB (1,669 words) - 16:49, 7 February 2024
curve of a limonite vug Example of open space in a vug allowing the formation of crystallized minerals Apple green pyromorphite cluster on limonite matrix...
4 KB (396 words) - 00:46, 6 March 2024
major ingredient of all the ochres is iron(III) oxide-hydroxide, known as limonite, which gives them a yellow colour. A range of other minerals may also be...
39 KB (4,944 words) - 20:03, 18 September 2024
iron oxides. In the case of sienna, the most prevalent iron oxides are limonite (which in its natural state has a yellowish color), and goethite. In addition...
13 KB (1,612 words) - 11:10, 21 August 2024
is frequently seen in relatively soft, loosely bound minerals, such as limonite, kaolinite and aluminite. Hackly fracture (also known as jagged fracture)...
3 KB (296 words) - 17:50, 20 January 2024
readily oxidizes to limonite. When it is partially or fully oxidized to limonite, the green color becomes a yellowish-brown. Limonite is opaque under the...
16 KB (2,062 words) - 00:10, 14 January 2024
quartz crystals and altered amphibole fibres that have mostly turned into limonite. Tiger iron is an altered rock composed chiefly of tiger's eye, red jasper...
6 KB (544 words) - 19:43, 15 September 2024
(hypogene zone). Pyrite (FeS2) has oxidised to form goethite (FeO(OH)) and limonite (FeO(OH)·nH2O), which form a porous covering over the oxidized zone known...
7 KB (767 words) - 14:47, 27 March 2024
Gold vein stockwork in limonite, from Gold Flake Vein, Farncomb Hill, Breckenridge Mining District, Summit County, Colorado, USA...
42 KB (2,782 words) - 13:51, 17 September 2024
weathering of grey serpentinite to greyish-brown nickel-containing laterite with a high iron percentage (nickel limonite), near Mayagüez, Puerto Rico....
36 KB (3,979 words) - 09:47, 11 September 2024