EASC-101 Lecture 2: Unit 2 Sedimentary Rocks
14 Nov 2016
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Determine whether or not something is a mineral: structure, composition. Explain how minerals are classified: species varieties. Identify whether a mineral is a silicate or a non-silicate mineral: silicate will have the si in its composition. Define the characteristics used to describe minerals: see below cause there"s a lot! Naturally occurring: meaning they form by a natural inorganic process. As magma starts to cool minerals begin to crystalize. Water dissolves from a supersaturated solution and leaves a mineral lattice substance (ex: salt) Solid form only (exception of liquid mercury: excludes gases, plasmas, and liquids. Orderly crystalline structure: the internal ions structure forms in a crystalline pattern. Definite chemical composition: composition is expressed by the chemical formula. For some the chemicals are interchangeable (olivine"s. Sio4 can bond with fe or mg to form the same compound. Classes: collections of minerals species that exhibit similar internal structures: species: similar internal structures & chemical compositions.
