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Minerals
A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition, a highly ordered atomic structure and specific physical properties. The minerals are grouped in accordance with their chemical composition. The groups include: carbonates, sulphides, halides, silicates, sulphates, phosphates, hydroxides, oxides and native elements. Some of the characteristics which are used in identification are:
- color
- streak
- luster
- hardness
- cleavage
- specific gravity
- crystal form
- crystal systems
- symmetry
Pictured below are just a few of the many different types of mineral our work contains:
