L07_18_Sept_Petrology

Minerals are crystalline crystal structure of nacl

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Unformatted text preview: geneous: minerals consist of single, solid substances that cannot be physically subdivided into simpler compounds. solid: liquids and gases are not minerals. Ice is a mineral, but liquid water isn’t definite chemical formula: the chemical make- up of the substance can be defined by a definite chemical formula. Example: Quartz: SiO2 highly- ordered atomic arrangement minerals have an internal structural framework of atoms (or ions) arranged in a regular geometric pa[ern. Minerals are crystalline. crystal structure of NaCl, table salt (mineral name: halite) Mineral Polymorphs: Minerals with same chemical formula Aragonite (CaCO3) Calcite (CaCO3) Minerals that make up the majority of the mantle and crust: Mantle Chemical Formula Specific mineral or group Oli...
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