7th-8th Ch. 14 Review 2: Question Preview (ID: 31435)


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Which of the following is not a native mineral?
a) platinum
b) copper
c) quarz
d) sulfur

Fool's gold (also called pyrite), which is a mineral of iron and sulfur, is classified as a/an ______.
a) sulfide.
b) carbonate.
c) silicate.
d) oxide.

A green mineral fizzes when a drop of dilute hydrochloric acid is placed on it. You could conclude that the mineral is ____.
a) cuprite (a copper oxide).
b) malachite (a copper carbonate).
c) chrysocolla (a copper silicate).
d) gypsum (a calcium sulfate).

Which of the following minerals has perfect cleavage?
a) pyrite
b) quarz
c) mica
d) magnetite

Obsidian, a mineral of volcanic origin, breaks in smooth, curved surfaces. What type of fracture does it show?
a) hackly
b) fibrous
c) uneven
d) conchoidal

A transparent mineral fluoresces red and exhibits double refraction. You could conclude that the mineral is _______.
a) mica.
b) calcite.
c) quartz.
d) diamond.

The best metallic conductor of electricity is _____.
a) silver.
b) chromium.
c) copper.
d) iron.

A black mineral sample attracts iron filing. You could conclude that the mineral is ______.
a) tourmaline.
b) feldspar.
c) magnetite.
d) smoky quartz.

Lodestone is the same as _________.
a) talc.
b) diamond.
c) quartz.
d) magnetite .

This mineral has a hardness of 1.
a) talc
b) diamond
c) quartz
d) magnetite

This is the hardest natural mineral.
a) talc
b) diamond
c) quartz
d) magnetite

This mineral can be pink, black, white, transparent, violet, blue, or green in color.
a) talc
b) diamond
c) quartz
d) magnetite

This is the only precious metal that readily tarnishes.
a) halite
b) asbestos
c) silver
d) obsidian

This has a silky luster.
a) halite
b) asbestos
c) silver
d) obsidian

This is the bending of light.
a) fracture
b) luster
c) florescence
d) refraction

This is determined by the way light is reflected.
a) fracture
b) luster
c) florescence
d) refraction

Glows only when illuminated by ultraviolet light
a) fracture
b) luster
c) florescence
d) refraction

Which of the following is a mixture?
a) seawater
b) copper
c) sand (silicon dioxide)
d) diamond

The country that produces more diamonds than any other is ____________.
a) The United States
b) South Korea
c) Russia
d) Australia

If a mineral produces flat surfaces when it breaks, then it exhibits ___________.
a) density.
b) cleavage.
c) hardness.
d) streak.

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