igneous, sedimentary, and metamorphic

Earth

Terra / Earth

AI-generated identification · may be incorrect

Average density: 5.51 g/cm3; Color: Blue (water), Brown/Green (land), White (clouds); Structure: Stratified into crust, mantle, and core; Hardness: Varies (surface rocks range from 1 to 10 on Mohs scale)

Hardness: Varies (surface rocks range from 1 to 10 on Mohs scale)
Color: Blue (water), Brown/Green (land), White (clouds)

Identified June 24, 2026More igneous, sedimentary, and metamorphic →

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Physical properties

Formation & geological history

Formed approximately 4.54 billion years ago via accretion from the solar nebula; primarily shaped by plate tectonics, erosion, and volcanic activity.

Uses & applications

Hospitable environment for all known life; source of all natural resources for human civilization including minerals, fossil fuels, and water.

Geological facts

Earth is the only known planet with active plate tectonics and liquid surface water. It is technically an 'oblate spheroid' rather than a perfect sphere due to its rotation.

Field identification & locations

Identifiable in the field by being the ground beneath your feet. It is the densest planet in the solar system. For collectors: it contains every known natural mineral and rock type.