Micaceous iron ore

This same oxide exists in a variety of other forms, such os a fibrous mass, with the fibres radiating from a centre, in which state it is termed the red hematite or fibrous iron ore. When the ore is an amorphous mass, it is termed compact iron, ore when mixed with clay and other earthy matters, red ochre when hard, and combined with silica, jaspery ore / whon in scales of a black metallic lustra, it is known as micaceous iron ore or iron glance. 

Micaceous iron ore is the name given to crystalline ferric oxide exhibiting a foliated structure of dark grey scales that glisten like mica. No mica, however, is present in the ore. It is found in the Lake Superior district, U.S.A., but the finest crystals come from Elba. Prior to the European war of 1914 micaceous ore was raised in Devonshire 3 and sent to Germany under the name of shining ore. Hardness 6 density 5-2. 

Micaceous iron ore Fe203 52 6 Fohated variety of specular iron. 

Micaceous iron oxide n. Naturally occurring iron ore which resembles mica only in appearance and not chemically. It is converted to a grayish pigment, which has value as a constituent of anti-corrosive paints and protective coatings. Density, 4.90 g/cm (40.8lb/gal) O.A., 11/200 lb hardness (Mohs), 6.0 ph, 7.7. 

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