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About mica
Mica - Explanation and use.

It is believed that the name mica has been derived from the Latin word micare, which means to shine or glitter. The term describes a group of complex hydrous aluminium silicate minerals. Crystals of mica exhibit perfect basal cleavage and split easily into tough, flexible platelets or sheets. The thinnest platelet producible is determined essentially by mechanical considerations.

There is considerable variation in the chemical composition of the mica minerals. These minerals are distinguished by the presence of metallic cations, principally potassium, iron, magnesium and aluminium. The commercially most important types of mica are Muscovite mica, a potassium aluminium silicate, Phlogopite mica, a magnesium-iron aluminium silicate and Biotite mica which is the high iron member of this series.

Mica deposits are found throughout the world in Europe, the North and South Americas, in Africa, India and China. We in Mahlwerk Neubauer-Friedrich Geffers GmbH are processing and dealing solely natural muscovite mica in dry, wet ground and calcined form.

Dry grinding mica to flakes or powder form has a tendency to pulverize the mica producing particles that are more granular in shape rather than thin platelets. Wet grinding is done in a water based environment and applies enormous shearing forces on the mica delaminating the sheets into thin platelets. However, the economics of wet grinding versus dry grinding often dictate the use of the lower cost dry ground materials presuming the benefits provided are sufficient for the application.

In building materials, paints, plastics, welding electrodes, foundry works, cosmetics and other end-uses including oil drilling ground mica is typically used as filler. In rubber applications mica is used as a mold release agent in the priming of rubber products.

from : (mica.in)





  • Phlogopite
    more
    details
  • Crystallography
    details
  • MICA
    the Maryland Institute College of Art
    details
  • Mica Lighting .
    http://www.micalamps.com/
    details
  • Phyllosilicate mineral of aluminium and potassium
    http://en.wikipedia.org/wiki/Muscovite
    details
  • Silver mica
    http://www.patentstorm.us/patents/4025829.html
    details
  • MICA-Mineral Information Institute
    http://www.google.com/
    details
  • Biotite
    http://www.britannica.com/EBchecked/topic/66240/biotite
    details
  • Muscovite.
    http://www.mineralszone.com/minerals
    details
  • Mica-aluminum silicate minerals.
    http://www.answers.com/topic/mica
    details
  • Mica Shields
    details
  • Mica Histori & General Information.
    details
  • Muscovite.
    http://itc.gsw.edu/faculty/bcarter/physgeol/min/musc.htm
    details
  • Britannica about mica.
    Asian deposits, chemical etching, compressibility...
    details
  • Micanite.
    details
  • Mineral Muscovite.
    details
  • The Mica Group of minerals
    details
  • Mica - Explanation and use.
    details
  • Mica grouping (chemical composition)
    details
  • Molding micaceous laminate
    details
  • Mica insulation
    details
  • New electric insulating materials
    details
  • SOGM - SMOG
    details
  • Mica and ecology
    details
  • English version (page about mica)
    details
  • Chemical composition of mica
    details
  • Molding micanite, Federal Standard 6122-75
    details
  • Key trends in mica consumption. Application areas
    details
  • Mica types, grades and application areas
    details
  • If microwave oven's strip burned out
    details
  • Universal insulating materials
    details
  • Mica-bearing materials list
    details
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