Rock, Definition, Characteristics, Formation, Cycle, Classification, Types, & Facts

Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.

Detrital vs. Chemical Sedimentary Rocks

Glad You Asked: Igneous, Sedimentary, & Metamorphic Rocks - Utah

Rock Definition, Characteristics, Formation, Cycle

Shale Rock: Geology, Composition, Uses

Earth Science for Kids: Rocks, Rock Cycle, and Formation

Rock Cycle Igneous Rock, Metamorphic Rock, Sedimentary Rock

3 Types of Rock: Igneous, Sedimentary & Metamorphic

The Three Major Types of Rocks Definition & Examples - Video

The Rock Cycle

Three Types of Rock: Igneous, Sedimentary & Metamorphic

Reading: Characteristics of Metamorphic Rocks

AP Notes - Rock Cycle and Formation - AP Environmental Science

30 Types of Rock That You Shouldn't Take For Granite: Pictures and

Marble: Metamorphic Rock: Pictures, Definition, Properties

Rocks and minerals - British Geological Survey