| Mica is a naturally occurring mineral and as such its exact composition varies between grades, as will its properties. Ruby Mica is the highest grade of Muscovite Mica. The name comes from the Latin micare, to shine or glitter. It can be split into thin uniform layers, down to 0.05 mm. The high skill involved in such splitting results in a high cost. Mica is transparent, and resistant to heat, as well as being one of the best electrical insulators known. It is resistant to high temperatures and chemically inert to most substances. It exhibits very low water absorption. Information provided by Goodfellow. |
