parsian mineral processing

Micaceous Iron Oxide

about this product

Nowadays MIO paint is a widely available excellent quality protective paint, as a search of the internet will reveal. Modern use extends to such structures as bridges, pylons, electrical distribution equipment and oil rigs; at Kelly Mine it is used to protect the pipe to the water turbine!

Nowadays, MIO is mined in many countries: Austria, Turkey, Spain, Australia, etc. The quality of the MIO tends to vary and the softest material makes the best paint.

  A paint has three components:

• Pigment which is the solid material giving the paints its color and bulk

• Medium which binds the pigment particles together.

• Solvent or thinners which make the paint spreadable and evaporates after application.

• Micaceous hematite has a laminar or flaky structure and the individual flakes are inert and impervious to ultraviolet light and the pollutants which cause corrosion.

When an MIO paint, using micaceous hematite as the pigment, dries or cures on a surface, the hematite flakes orientate themselves into layers more or less parallel to the surface. This results in interleaving and overlapping somewhat similar to fish-scales or roof tiles, resulting in a tight seal which acts as an effective barrier to corrosion from water, sea-spray, Sulphur dioxide, ammonia and other pollutants; they cannot permeate the packed layered structure of the paint. MIO flakes are also impervious to ultraviolet light thereby greatly reducing deterioration of the binding medium.

Thus MIO paint is an excellent anti- corrosion even by todays exacting standards.

Product Applications

in glaze for pottery

in tiles and decorative bricks

in Anti-corrosion paint

Description of the Product Applications

The uses of micaceous hematite (MIO) exploit its particular structure. Through a microscope it is seen to be composed of flat flakes, rather like a miniature pile of broken roofing slates; hence the term micaceous ('like mica'). It is this lamenar structure which gives micaceous hematite its unique uses. Attempts to use the ore for the production of iron have not been successful and it is too valuable for this purpose.

In the 18th and early 19th centuries, micaceous hematite was marketed as writing sand, ’Devonshire Sand' or 'Pounce' and was used to absorb the ink on hand written documents prior to the invention of blotting paper.

It was also used as a substitute for graphite or as an adulterant to extend expensive graphite. Micaceous hematite on its own or mixed with graphite was used as 'black lead' for stoves and as a dry lubricant.

Shiny ore has also been used in glaze for pottery ('sparkle ware'), tiles and decorative bricks. A fragment of early such pottery can be seen at the House of Marbles at Bovey Tracey and other examples, both old and recent, can be seen in the mine museum.



Micaceous Iron Oxide


Parsian Mineral Processing Company, with more than two decades of successful experience and having a complete set of knowledge, ability, experience, expertise and benefiting from experts and experienced personnel, while providing all the professional export services, will help you to receive our quality products anywhere in the world. Long-term and successful presence in international markets of the world has provided the company with a variety of services to organizations, institutions, cooperatives, companies, factories, and other applicants.



6th Floor, No.38, 13th St., Velenjak St., Tehran, Iran


Phone : +9821 2778

Fax : +9821 2218 5009


Email :

Copyright © 2017 Parsian Processing Minerals Company. All rights reserved.