Rock Crossword Puzzle

Made of clay sized particles
The Earths basins are underlain by basalt
Dark colored igneous rock
Metamorphic rock that forms when limestone is subjected to heat and pressure
Composed principally of silicate minerals
It is a mafic, holocrystalline subvolcanic rock
Composed of largely of the calcium rich gioclase
Hard, non-foliated metamorphic rock
Dense, coarse-grained igneous rock
Composed mainly of sand-sized mineral particles or rock fragments
Composed mainly of skeletal fragments
Coarse-grained intrusive igneous rock
It has a aphanitic to porphyritic texture
Naturally occurring volcanic glass formed as an extrusive igneous rock
Soft, white, porous, sedimentary carbonate rock
Igneous and volcanic rock. Intermediate in composition between andesite and rhyolite
Anhydrous carbonate mineral composed of calcium magnesium and carbonate
Highly vesicular, dark colored volcanic rock
Fine-grained sedimentary rock composed of microcrystalline
Rock type made of volcanic ash ejected from vent during a volcanic eruption