Common monomineralic metamorphic rocks are marble and quartzite although they do not need necessarily to be monomineralic.
Is marble monomineralic.
This is the most important difference between most igneous monomineralic rocks which need to be more than 90.
Marble is commonly used for sculpture and as a building material.
Two types of rocks with similar uniaxial compressive strength are chosen.
Similar is the situation with their sedimentary protoliths limestone and sandstone which may be very pure.
Monomineralic applied to rocks composed of one mineral type only.
Common monomineralic metamorphic rocks are marble and quartzite although they do not need necessarily to be monomineralic.
One is granite which is an igneous rock that is polymineralic the other is marble which is monomineralic and relatively homogeneous.
Examples would include the igneous rock anorthosite composed entirely of plagioclase feldspar and the metamorphic rock marble composed entirely of calcite.
The mineral content and grain structure of two rock types are identified using petrographic thin sections.