Low-Grade Metamorphism:
* Marble: The most common metamorphic rock derived from limestone. It is characterized by its coarse, crystalline texture and often comes in various colors due to impurities.
* Calc-silicate rocks: These rocks form when limestone reacts with other minerals like silica or clay during metamorphism. They are often banded and contain various minerals like garnet, tremolite, and epidote.
High-Grade Metamorphism:
* Skarn: These are complex rocks formed by metasomatism, a process where chemical reactions between fluids and existing rocks cause mineral changes. They are often rich in calcium, magnesium, and iron minerals.
* Hornfels: These are dense, hard, and often fine-grained rocks formed by contact metamorphism (heat from magma). They can have a variety of mineral compositions depending on the original limestone and the other minerals present.
Other possibilities:
* Wollastonite: This mineral can form from the breakdown of limestone at higher temperatures.
* Grossular garnet: This gemstone can form within calc-silicate rocks during regional metamorphism.
The specific metamorphic rock produced will depend on the exact conditions of metamorphism and the composition of the original limestone.
