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Mineral review

Mineral review. The following is a review of the important minerals you will need to know for the test. The identity of the minerals are given at the end of the PowerPoint. No peeking!. SAMPLE #1 Harness: 7 Streak: colorless Breakage: fracture Luster: nonmetallic (glassy)

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Mineral review

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  1. Mineral review

  2. The following is a review of the important minerals you will need to know for the test. The identity of the minerals are given at the end of the PowerPoint. No peeking!

  3. SAMPLE #1 Harness: 7 Streak: colorless Breakage: fracture Luster: nonmetallic (glassy) Special notes: this is a six-sided crystal with hexagonal symmetry Fractured part of the sample.

  4. SAMPLE #2 Harness: 6.5 Streak: green-black Breakage: fracture Luster: metallic

  5. SAMPLE #3 Harness: 2.5-3 Streak: black to dark brown Breakage: cleavage Luster: nonmetallic

  6. SAMPLE #4 Harness: 3 Streak: colorless Breakage: cleavage Luster: nonmetallic (glassy) Special notes: mineral will react (fizz) with acid and mineral always has the shape of a rhombus

  7. SAMPLE #5 Harness: 2.5 Streak: gray-black streak Breakage: cleavage Luster: metallic

  8. Answer key • Sample 1: quartz • Sample 2: pyrite • Sample 3: biotite mica • Sample 4: calcite • Sample 5: galena

  9. FOR FUN – answer on next slide! Harness: 2.5-3 Streak: red-orange Breakage: fracture Luster: metallic

  10. Copper!

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