magnetite

How To Use magnetite In A Sentence

• The main constituent phases of these rocks are plagioclase, hornblende, pyroxene, quartz and K-feldspar, and accessory phases include magnetite, sphene, zircon and apatite.
• Microscopic analyses reveal that the oxide mineralogy of the dolerites is dominated by magnetite and ilmenite.
• Many of the latter are magnetite, while the others are hornblende and various ferromagnesian silicates. Aboriginal Remains in Verde Valley, Arizona Thirteenth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1891-92, Government Printing Office, Washington, 1896, pages 179-262
• In some chitons, the radula has teeth tipped with magnetite, which hardens them.
• In effect, magnetite does not have internal holohedral cubic symmetry, although the form faces of a crystal do appear as holohedral.
• Lodestones are simply naturally occurring magnets composed of the magnetic mineral magnetite.
• Some of the characteristic minerals found in kimberlite are olivine, pyrope garnet, enstatite, diopside, ilmenite, phlogopite, perovskite, magnetite, and spinel.
• The palaeomagnetic analyses of this study have revealed that the dominant carrier of remanent magnetization of the Whin Sill dolerite is relatively pure magnetite in the pseudo-single domain size range.
• The sample is composed of K-feldspar, plagioclase and quartz with accessory apatite, magnetite, titanite, zircon and secondary epidote.
• The magnetite is variably altered to martite and shows a grainsize in the range 100-500um that forms 30-60% by volume of the rock. Latest News - Yahoo!7 News