ROCK
IDENTIFICATION LAB
(Igneous,
Metamorphic, Sedimentary)
Materials: labeled rock set, vinegar, streak plate, hand lens, paper towels, water, cloth towel, steel nail, unknown rocks, glass plate, magnet, copper penny.
Procedure:
Sample Data Table:
Sample |
Observations |
Rock Type |
Rock Name |
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Moh’s Scale for Hardness
Hardness Common Test
1 Easily scratched by fingernail
2 Can be scratched by fingernail with effort
3 Can be scratched by penny
4 Scratches penny; can be easily scratched with glass
5 Can be scratched by glass
6 Barely scratches glass
7 Scratches glass easily