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EASC%20101%20Ch%202_Minerals%20and%20the%20Rock%20Cycle

EASC%20101%20Ch%202_Minerals%20and%20the%20Rock%20Cycle -...

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1 EASC 101 Chapter 2: MINERALS: THE BUILDING BLOCKS OF ROCKS Last Lecture Æ The “BIG” picture In order to understand the geological processes that occur on a large scale, must look at the building blocks of the Earth Æ minerals. MINERAL – a chemical element or compound that is: 1. Naturally occurring 2. Solid 3. Orderly internal Crystal Structure 4. Definite Chemical Composition (and… generally, formed by inorganic processes. Although this is not always a requirement) In geologic terms, a material must satisfy all of the first 4 above criteria in order to be classified as a mineral.
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