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Mica Blocks

Knife dressed Sheet Mica of a minimum thickness of 0.18 mm(0.007 Inch), is called Block Mica. Block Mica is obtained in size as large as 30 to 35 cm.sq. (12 to 14 Inches sq) beyond, which is practically rare and far too expensive. It is available in sheets with an average thickness between 0.18 - 0.75mm (0.007 - 0.030 Inch). Block Mica is supplied both in natural (random) and calibrated thickness as per customers demand.

Mica Thins

Knife dressed Sheet Mica in any specified range of thickness between 0.05 upto 0.18 mm (0.002 to 0.007 Inch), is called Thin Mica.

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Mica Condensor

Pieces of high quality Mica having thickness generally less than 2 mils are classified as Condenser Films. These Films are used in the manufacture of Silver Mica Plates used in Mica Capacitors.

Mica Splittings

Laminae split from block and thin Mica, the thickness of Ten Sheets of which taken together does not exceed 0.30 mm (0.012 Inch), is called Splitting Mica. Splitting Mica chiefly is used in the manufacture of Built-Up Mica or Micanite products as raw material for ultimate use as an Insulating Material.


Mica Scrap

Scrap mica basically, is a mica that is below specifications and not suitable for use as sheet mica, because of size, or quality. It is a by-product of mining, trimming, and fabricating sheet mica.

Scrap mica is Classified and marketed in the following grades:

Mine Scrap

Scrap mica is obtained in course of cobbling, rifting and dressing crude mica as extracted from the mine, by means of a sickle, as well as, recovered by means of hammer-crushing cross-grained mica which cannot be used as sheet mica for commercial purposes, is classified as mine scrap. It is screened over 1.9 (or 0.75 sq.inch) openings, and have an average size between 25-50 mm (1-2 inches), and thickness ranging between 0.25-1.5 mm (0.010-0.060 inches). All mine scrap must be clean, dry , hard, free from mineral and non-mineral impurities, such as: Quartz, feldspar, garnet, tourmaline, stones, mud-stained or biotitic mica, Clay, sand, as well as, other foreign inclusions, viz:paper, wood-leaves, straw, jute-strings, nails or any other iron-contents etc. It is packed for export in string new gunny (jute) bags containing 50 kilos net weight packing’s. Mine scrap is primarily used as, paints, electrodes, oil-well drillings, asphalt roofing’s, tyre, gypsum plaster board etc. Increasing quantities of superior quality mine scrap are now used for manufacturing of mica paper or reconstituted mica as a basic raw material.

Factory Scrap

Scrap Mica or mica cutting obtained in course of trimming and dressing sheet mica in the factory by sharp knife, as well as recovered during cutting and stamping sheet mica into pieces of definite size and shape by sear and punch is classified as factory scrap or cuttings. Factory scrap is screened over 1.3 (or half inch square) openings, and has an average size between 0.12-0.50 cm (0.5-2 inches) and thickness ranging between .015-0.5 mm (0.006-.020 inches). All factory scrap or cuttings must be absolutely pure, fresh, clean, hard and substantially free from mineral and non-mineral impurities and other foreign inclusions. It is a highest grade and quality of scrap mica, which is mostly used in forming mica paper or reconstituted mica. India enjoys vast resources and deposits of Sheet Mica and produces world’s finest quality of Mine and Factory Scrap, because all of it is produced in course of Sheet Mica Production.

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