1) Igneous rock
Found on
https://www.crosswordclues.com/clue/peperite
A Peperite is a sedimentary rock that contains fragments of igneous material and is formed when magma comes into contact with wet sediments. The term was originally used to describe rocks from the Limagne region of France, from the similarity in appearance of the granules of dark basalt in the light-coloured limestone to black pepper. Typically th...
Found on
http://en.wikipedia.org/wiki/Peperite
subsurface rock containing fragments ejected by an underground volcanic explosion (see tuff).[2 related articles]
Found on
http://www.britannica.com/eb/a-z/p/41
No exact match found.
