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1. mineralogy-the branch of geology that studies minerals: their structure and properties and the ways of distinguishing them. geology-a science that deals with the history of the earth as recorded in rocks.geode - (mineralogy) a hollow rock or nodule with the cavity usually lined with crystals.ineralogy-the branch of geology that studies minerals: their structure and properties and the ways of distinguishing them. geology-a science that deals with the history of the earth as recorded in rocks. geode - (mineralogy) a hollow rock or nodule with the cavity usually lined with crystals.
mineral. n. 1. (Minerals) any of a class of naturally occurring solid inorganic substances with a characteristic crystalline form and a homogeneous chemical composition.2. any inorganic matter. 3. (Mining & Quarrying) any substance obtained by mining, esp a metal ore.. any of the inorganic elements, as calcium, iron, magnesium, potassium, or sodium, that are essential to the functioning of the human body and are obtained from foods. 5. minerals, Brit. mineral water. 6. of, pertaining to, or of the nature of a mineral. 7. containing or impregnated with minerals.