Question

Which of the following is the finest form of iron ore:
A. Haematite
B. Limonite
C. Magnetite
D. Siderite

Answer 1

Hint: The minerals from which metal is skillfully and profitably wrenched out are termed as ores. Haematite, Magnetite, Siderite, Iron pyrites are the ores of the metallic Iron.

Complete Answer:
Hematite ore is a vastly good-sized industrial iron ore in phrases of abundance used however has a narrowly decreased iron volume than magnetite. (50-60 percent). Hematite ore is a direct-shipping ore with naturally excessive iron content. Because of its massive iron content, hematite ore must endure solely an easy crushing, screening, and mixing technique earlier than being shipped off for steel production.
Limonite, one of the fundamental iron minerals, hydrated ferric oxide. Limonite has been used as low-quality iron ore for heaps of years.
Magnetite is the nicest iron ore with very large content material of iron up to 70 percent. It has splendid magnetic traits, especially worthwhile in the electrical industry. Generally, most magnetite banded iron formation deposits ought to be ground to between 32 and forty-five micrometers to produce a low-silica magnetite concentrate.
Siderite has Mohs hardness of 3.75-4.25, a particular gravity of 3.96, a white streak, and a vitreous luster or pearly luster. Siderite is antiferromagnetic beneath its Néel temperature of 37 K which can assist in its identification.
So, the correct answer is Option C.

Note: Magnetite, haematite, limonite, siderite all are the ores of Iron. Magnetite has been the fantastic first-class iron ore which incorporates 72% pure iron. Haematite includes 60%-70% pure iron ore. Siderite includes more than a few impurities and has merely 40% to 50% pure iron.