Food Intake Day One Essay

995 WordsMar 23, 20134 Pages
1. Define Mineral: Any naturally occurring inorganic solid that possesses an orderly crystalline structure and can be represented by a chemical formula. 2. Use the geologic definition of a mineral to determine which of the items listed in Figure 1.1 (p.3 lab book) are minerals and which are not minerals. Put an “X” in the appropriate box. Yes | No | Mineral | Yes | No | Mineral | | X | Rock Candy | | X | Obsidian | X | | Quartz | | X | Cubic zirconia | | X | Motor oil | | X | Hydrogen | X | | Emerald | | X | Rain water | | X | Vitamin D | X | | Halite | Figure 1.1 (p. 3 lab book) 3. Examine the luster of the minerals in Figure 1.2 (p. 4 lab book). Place the letter A, B, C, D, or E in…show more content…
Calcite - White b. Graphite – Dark Grey c. Hematite- Grey 8. To some observers, the mineral shown in Figure 1.6 (p. 5 lab book) exhibits a metallic luster, while others describe its luster as nonmetallic. Based on the streak of this sample, how would you describe its luster? Luster: nonmetallic 9. Select one of the following terms to describe the crystal shape, or habit, or each specimen shown in Figure 1.8 (p. 6 lab book): cubic crystals, hexagonal crystals, fibrous habit, banded habit, blocky habit, bladed habit, tabular habit. Specimen A: bladed habit Specimen B: hexagonal crystals Specimen C: fiborous habit Specimen D: cubic crystals 10. The minerals shown in Figure 1.12 (p. 7 lab book) are fluorite and topaz that have been tested for hardness. Use the Mohs scale in Figure 1.11 (p. 7 lab book) to identify which is fluorite and which is topaz. MINERAL NAME Specimen A: Topaz Specimen B: Fluorite 11. Perform the Mohs hardness test on all of the samples in your set; determine which is the hardest and softest. a. Hardest= Diamond b. Softest= Talc 12. Describe the cleavage of the mineral shown in Figure 1.14A (p. 8 lab book). 13. Refer to the photograph in Figure 1.14B (p. 8 lab book), which shows a mineral that has several smooth, flat cleavage surfaces, to complete the following. a. How many cleavage planes or surfaces are present on the specimen? Number of cleavage planes: 7 b. How many

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