Learning Geology

Types of Metamorphic Rocks  Coming up with a way to classify and name the great variety of metamorphic rocks on Earth hasn't been eas...

What is Quartzite? Quartzite is a nonfoliated metamorphic rock that formed by the metamorphism of pure quartz sandstone . The intense ...

What is Hornfels? Hornfels is from a German word means hornstone because of its much hardness and texture both resembled to animal h...

What is Amphibolite? Amphibolite is a non foliated metamorphic rock that is mainly composed of mineral amphibole and plagioclase fel...

What is Marble? Marble is a metamorphic rock which is non foliated and is formed when limestone is subjected to heat and pressure whe...

What is Slate? Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock ...

What is Schist? Schist is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (ne...

What is Phyllite? Phyllite is a metamorphic rock which forms when slate is further metamorphosed until very fine grained white mica a...

Metamorphic rocks are formed by the heating of pre-existing rocks. The heat provide to a rock changes it mineralogical and physical changes ...

There are three main types of rocks Sedimentary Metamorphic Igneous Sedimentary rocks Sedimentary rocks are those that are produc...