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Identifying Minerals

Identifying Minerals. Review – Rock Properties. Methods in identifying minerals and rocks: Color (visual observation) Hardness (scratch test) Fizzing (chemical reaction). Table of Contents Topic Page Geology/Rocks/Minerals 3 Mock Rocks Observations & Measurements 4

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Identifying Minerals

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  1. Identifying Minerals

  2. Review – Rock Properties • Methods in identifying minerals and rocks: • Color (visual observation) • Hardness (scratch test) • Fizzing (chemical reaction)

  3. Table of Contents TopicPage Geology/Rocks/Minerals 3 Mock Rocks Observations & Measurements4 Analysis Part I 6 Calcite Quest

  4. “Streaking” • Streak is color of mineral in powdered form. • Geologists use streak plates.

  5. Identify Mineral - Streak Test • 4 unknown mineral samples per table group. • Take turn testing the minerals. • Place mineral back in correct cup. • Record observations on worksheet (Streak Test Minerals).

  6. “Luster” • Lusteris the way light reflects off a mineral’s surface. • Metallicmeans it looks shiny like metal. • Nonmetallic describes all of the other lusters.

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