Main index --- Minerals list --- Other Minerals index Mica
Name:Mica
Derivation:From "mica" (Latin) a crumb, probably influenced by "micare" (Latin) to glitter
Formula:Various, e.g. KAl2(AlSi3O10)(OH,F)2
Description: Flat sheets, perhaps very thin, even transparent, or of various colours, which glitter. Sometimes the sheets lie flat, sometimes they're jumbled together.

Mica Mica Mica flakes were strewn on the surface of the Circus Maximus during the Games at Rome, to give an attractive sparkling effect.

Muscovite mica was once used for windows instead of glass. It still is used for iron-stove windows. It is also used as an insulator for electrical equipment. Scrap mica has many uses, from lubricant to Christmas Tree "snow".

Vermiculite mica, when expanded, forms a water-absorbent substance used in seed planting and as an insulating material.

Larger pictures of Mica:

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Mica can be transparent.

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