Mica is a transparent mineral composed of  complex mixtures of potassium silicates. The variety of mica used most frequently by these Indian artists is Muscovite (H₂KAl₃ Si0₄)₃ which is found widely throughout south India. The mica is formed between strata of granite and the transparency of the material is a result of the heat and pressure created between the layers of rock during formation. Mica consists of many interlocking platelets, resulting in a laminar structure which can be split easily  into thin sheets.

These paintings were produced in standard sets for the colonial tourist market. They imitated paintings on glass, which were popular in Europe.

Set of six paintings painted on Mica c1860. Framed