Rock characteristics

What characteristic describes this sedimentary rock called banded iron?

What characteristic describes this igneous rock called pumice?

What characteristic describes this igneous rock called perlite?

What characteristic describes this igneous rock called granite?

What characteristic describes this sedimentary rock called a conglomerate?

What characteristic describes this igneous rock called scoria?

What characteristic describes this sedimentary rock called sandstone?

Match it! Select the correct answer from the pull down...Good luck!