'Silica tetrahedron' diaporamas de présentation

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Minerals

Minerals. Minerals. The earth is made up of matter, which consists of elements , which in turn consist of atoms. Minerals. What is an element?. a form of matter that cannot be broken down into a simpler form by heat, cold, or reaction with other chemical elements

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Martian Mineralogy: Important Minerals for Understanding Geological Processes on Mars

Martian Mineralogy: Important Minerals for Understanding Geological Processes on Mars. Liz Rampe (NASA-JSC/ORAU) 9 July 2012 elizabeth.b.rampe@nasa.gov. Why Study Minerals on Mars?. Link to past and present geologic processes Understand how geologic processes changed over time

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Minerals

Minerals. Geology: Slides 11-21. Minerals. For an object to be considered a mineral it must meet the following criteria: It must be naturally occurring It must be a solid It must have a definite chemical composition It must have a definite crystal structure

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Structure of Minerals

Structure of Minerals. All minerals are crystalline The atoms are arranged in a regular pattern A crystal is a regular geometric solid with smooth surfaces called crystal faces The orderly arrangement of ions determines the shape of the crystal. Crystal Structure.

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