Yahoo! Canada Answers Why is magnetite mined as an iron ore, but Magnetite is a Oxide while Biotite is a sheet silicate. The liberation process is easier for the oxides while the Biotite is more difficulter because of »More detailed
Duncan Lake Iron Ore Property Century Iron Mines Corporation. On May 20, 2008, the Century Iron Mines Corp. signed an option and joint venture Iron formations are banded with alternating bands of dark magnetite rich units tremolite, diopside, grunerite, hornblende, biotite, chlorite, epidote and pyrite in of iron head grade, but also in a major thickness increase of the iron lenses.
Why Is Magnetite Mined As An Iron Ore But Biotite Is Not Nov 16, 2010 Best Answer Magnetite is a Oxide while Biotite is a sheet silicate. The liberation process is easier for the oxides while the Biotite is more difficulter because of the silicate.
Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks. These include annite, phlogopite, siderophyllite, fluorophlogopite, fluorannite, eastonite, and many others. These micas vary in chemical composition but are all sheet silicate minerals with very similar physical properties.
Are all iron ores magnetic? Iron is one of the three naturally magnetic elements; the others are cobalt and nickel. Iron is the most magnetic of the three. The principle ores of iron are hematite and magnetite . Taconite is a low grade iron ore, containing up to 30% magnetite and hematite.
Biotite is a common group of phyllosilicate minerals within the mica group, with the approximate chemical formula K 3 AlSi 3 O 10 2.It is primarily a solid solution series between the iron endmember annite, and the magnesium endmember phlogopite; more aluminous end members include siderophyllite and eastonite.