An aggregate of one or more MINERALS rather large in area. The three classes of rocks are the following: (1) Igneous rock - crystalline rocks formed from molten material. Examples are granite and basalt. (2) Sedimentary rock - A rock resulting from the consolidatrion of loose SEDIMENT that has accumulated in layers. Examples are sandstone, shale and limestone. (3) Metamorphic rock - Rock that has formed from preexisting rock as a result of heat or pressure.
rocks are made of 2 or more minerals
Stones. Palestinians throw stones at soldiers in tanks and armored vehicles--it is a symbol of defiance and resistance.
Rocks are consolidated or crystalline aggregates of minerals and are classified as sedimentary, igneous or metamorphic.
a relatively hard, naturally formed mineral or petrified matter; a naturally forming aggregate of mineral matter constituting a significant pat of the earth's crust - BACK
also known as stones, curling rocks are made of rare, dense, and polished granite quarried only on Ailsa Craig, an island off Scotland's coast. Each rock weighs 42 pounds.