what are minerals kids
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.weet. : a substance (such as quartz, coal, petroleum, salt, etc.) that is naturally formed under the ground. : a chemical substance (such as iron or zinc) that occurs naturally in certain foods and that is important for good health.