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Iron Ores.
ORDER VII.
There are a vast variety of ores of iron scat-tered over the surface of the earth, which aredivided by mineralogists in the following man-ner :
Division of Ores of Iron
Genus i.— Alloys of Iron.
Species 1—Native Iron.
Genus ii.— Sulphuret of Iron .
Species 1.—Common Sulphuret of Iron, orUnmagnetical Iron Pyrites.Subspecies 1.—Common Iron Pyrites,
2. —Radiated Pyrites.
3. —Capillary Pyrites.
4. —Cellular Pyrites.
5. —Hepatic Pyrites.
Species 2.—Magnetical Pyrites.
Genus iii.— Oxids of Iron.
Species 1.—Magnetic Oxid of Iron, or Com-mon Magnetic Iron Ore,