Rock
Of natural object. May also be referred to as stone.
A lump or mass of hard consolidated mineral matter; "he threw a rock at me".
This concept's ID is @1~49891
Geology
- clastic rock
(geology) a rock composed of broken pieces of older rocks.
- sill
(geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary...
- xenolith
(geology) a piece of rock of different origin from the igneous rock in which it is emb...
Also contains
- concretion
A hard lump produced by the concretion of mineral salts; found in hollow organs or ducts...
- boulder
A large smooth mass of rock detached from its place of origin.
- outcrop
The part of a rock formation that appears above the surface of the surrounding land.
- crystal
A rock formed by the solidification of a substance; has regularly repeating internal structure;...
- chondrite
A rock of meteoric origin containing chondrules.
- stepping stone
A stone in a marsh or shallow water that can be stepped on in crossing.
- tor
A prominent rock or pile of rocks on a hill.
- achondrite
A stony meteor lacking chondrules.
- pebble
A small smooth rounded rock.
- bedrock
Solid unweathered rock lying beneath surface deposits of soil.
- wall rock
A rock immediately adjacent to a vein or fault.
- petrifaction
A rock created by petrifaction; an organic object infiltrated with mineral matter and...
- intrusion
Rock produced by an intrusive process.
- whinstone
Any of various hard colored rocks (especially rocks consisting of chert or basalt).