Three Classes of Rock Crossword

a mixture of minerals
most granite has a _________ of quartz, mica and feldspar
a rock that forms from cemented layers of sediment
a type of rock formed from the cooling of molted lava or magma
a rock that forms from other rock as a result of heat, pressure, or chemical processes
a compound or substance that has been purified or prepared, especially artificially
a compound or substance that has been purified or prepared, especially artificially
relating to or derived from living matter
relating to or denoting rock that has been extruded at the earth's surface as lava or other volcanic deposits
causing disruption or annoyance through being unwelcome or uninvited
hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
decorated with leaves or leaflike motifs
formed in the absence of significant differential pressure
of high quality
Said of a sediment or sedimentary rock, and of its texture, in which the individual particles have an average diameter in the range of 1/16 to 2 mm or sand size
rough, or loose in texture of grain