minerals definition for kid
Definition of MINERAL for Kids. 1. : a naturally occurring solid substance (as diamond, gold, or quartz) that is not of plant or animal origin. 2. : a naturally occurring substance (as ore, coal, salt, or petroleum) obtained from the ground usually for humans to use. a naturally occurring solid substance (as diamond, gold, or quartz) that is not of plant or animal origin. 2. : a naturally occurring substance (as ore, coal, salt, or petroleum) obtained from the ground usually for humans to use.