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A '''mineral''' is a naturally occurring, inorganic, homogeneous solid, such as quartz, mica, or gypsum. Minerals are most commonly found as components of '''rocks,''' which are mixture of minerals, but are often found by themselves in more or less pure form.
[[Image:Mineral.jpg|thumb|300px]]A '''mineral''' is a naturally occurring, inorganic, homogeneous solid, such as quartz, mica, or gypsum. Minerals are most commonly found as components of '''rocks,''' which are mixture of minerals, but are often found by themselves in more or less pure form.
The molecules of a mineral usually are arranged in a regular pattern, and may grow in a regular, visible, crystalline structure. When they do, they are often beautiful in appearance.
The molecules of a mineral usually are arranged in a regular pattern, and may grow in a regular, visible, crystalline structure. When they do, they are often beautiful in appearance.