Geology Section 5.3 Homework: Identifying Minerals: Due Tuesday, 10/30/12

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Read Section 5.3, Pages 104-107. Answer the following questions.

Last Name, First Name *

Period (Do not put nd, rd, or th after the number!) *

Luster is *

The way light is reflected off the surface of a mineral

a good way to determine the difference between metallic and non metallic properties

greasy, oily, dull, earthy, and glassy for minerals that are non-metallic

all of the above are correct

Look at the Mini-Lab on page 107. Describe what specific gravity is and how it is useful for identifying the difference between pyrite (fool's gold) and real gold. *

Fracture of a mineral is determined by the mineral's *

atomic arrangement of atoms

chemistry

crystal structure

all of the above are correct.

The use of hydrochloric acid is used to test for *

silicate mineral groups

sulfate mineral groups

carbonate mineral groups

oxide mineral groups

halide mineral groups

Which of the following properties is NOT a special property of minerals *

magnetism

ultraviolet light reactivity

double refraction

hardness

Nonmetallic minerals generally have *

lower specific gravities

higher specific gravities

no specific gravities

lower densities

both the first and fourth options are correct.

Describe how you would do a complete mineral identification from start to finish. *

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