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Mica


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Imerys extract and process Mica from their own deposits in France, as well as processing mica from other Imerys owned locations. Each of our mica deposits is proven to last for many years to come.

 

Properties

Mica is one of a group of lamellar, silicate minerals. Imerys mica powders are extracted from our deposits along with kaolin and feldspar. They are distinguished from other silicate minerals mainly by their high aspect ratio and elasticity. Using a variety of selection and processing methods Mica is separated from the other minerals, creating materials with a range of particle sizes.

 

Markets for Mica

When formulated into paint and mortar, mica can give a very smooth finish and easy dispersion. Coarser grades are used to give a decorative effect, Mica is often referred to as Glimmer, a description of the visual effect that it imparts.

 

The particle shape and chemical composition of Mica allows them to be used to increase resistance to chemicals, wear and tear and ultraviolet light in coatings and varnishes.

 

Mica powder is used by the plastics industry for the production of complex injection moulded parts taking advantage of it’s strengthening and elastic properties.  Mica is also widely used to improve the acoustic qualities of sound insulation, for example in automotive applications.

 

Geology and Deposits

Imerys extract and process Mica from their own deposits in France, as well as processing mica from other Imerys owned locations. Each of our mica deposits is proven to last for many years to come. This is audited on a regular basis by a competent person from an external organisation.

 

Mica occurs in many locations around the world and as would be expected of a World Class Performance Mineral supplier we are aware of the quality of global reserves and the opportunities they offer. This knowledge, in combination with our mineral processing skills and quality control systems, will allow us to maintain and develop our portfolio for all industries in response to market demand.

 

Quick View

Mineralogy: Muscovite mica
Typical Aspect Ratio: Platy, with typical aspect ratio of 20:1
Specific Gravity: 2.6
Refractive Index: 1.56
MOH Hardness: 2.5
Moisture: (max %) 1.5
pH: 5 - 7.5

 

Product Related Literature

PDF fileImerys Mica Brochure [1.13MB]


Related Topics

bullet pointMica for Sound Dampening

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©Imerys Minerals Ltd. 2012 | Registered office: Par Moor Centre - Par Moor Road - Par - Cornwall - PL24 2SQ UK | Company No: 269255