geology 101 study guide

geology 101 study guide - GEOLOGY 101, Section1 Chapter 3...

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GEOLOGY 101, Section1 Chapter 3 What is a Mineral? Ä Minerals are the “building blocks” of rocks Ä Minerals are naturally occurring Ä Minerals are inorganic they contains no organic carbon Ä Minerals are crystalline solids - atoms are arranged in a particular structure (ex: a cube) Ä Minerals have chemical compounds they contain specific elements in a set ratio. Mineral Identification Ä Different minerals look different because they have different physical properties. Ä The differing physical properties are a result of the chemical composition and crystal structure. Mineral Properties Color Luster be able to tell between metallic and non metallic black and shiny is not metallic. It needs to look like a metal Streak- porcesian plate, white colored streak Hardness how hard Cleavage or Fracture how it breaks, rough edge cleavge, breaks along smooth planes Specific Gravity and Density Crystal Habit shape of crystal Special Properties of Select Minerals
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Color Least reliable when identifying minerals Do not use alone someinterals can form in many difernt colors many for with the same color Luster How the surface of the mineral reflects light. Metallic like
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geology 101 study guide - GEOLOGY 101, Section1 Chapter 3...

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