Mineral Physical And Chemical Properties Question Preview (ID: 56784)

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Which characteristic do samples of the mineral pyroxene normally exhibit?

a) yellow to amber color

b) bubbling in hydrochloric acid

c) cleaves at 56° and 124

d) hardness of 5 to 6

The durable gemstones ruby and sapphire are valuable due to their color and hardness. These gemstones would most likely be located on Moh's scale at the hardness level of

a) 1

b) 9

c) 3

d) 4

Which statement is best supported by the data shown?

a) An iron nail contains fluorite.

b) A streak plate is composed of quartz.

c) Topaz is harder than a steel file.

d) Apatite is softer than a copper penny.

Moh's scale would be most useful for

a) finding the mass of a mineral sample

b) finding the density of a mineral sample

c) identifying a mineral sample

d) counting the number of cleavage surfaces of a mineral sample

Moh's scale arranges minerals according to their relative

a) resistance to breaking

b) resistance to scratching

c) specific heat

d) specific gravity

Which statement is best supported by Bowen's Reaction Series?

a) Most minerals crystallize at the same temperature.

b) Most felsic minerals usually crystallize before most mafic minerals.

c) Muscovite mica and quartz are the last minerals to crystallize as magma cools.

d) Biotite mica is the first mineral to crystallize as magma cools.

Different arrangements of tetrahedra in the silicate group of minerals result in differences in the minerals'

a) age, density, and smoothness

b) cleavage, color, and abundance

c) hardness, cleavage, and crystal shape

d) chemical composition, size, and origin

Which mineral was tested?

a) amphibole

b) quartz

c) galena

d) graphite

The luster of this mineral could be determined by

a) using an electronic balance

b) using a graduated cylinder

c) observing how light reflects from the surface of the mineral

d) observing what happens when acid is placed on the mineral

Scratching a mineral against a glass plate and rubbing a mineral on a streak plate are helpful procedures for determining a mineral’s

a) density

b) identity

c) cleavage

d) internal atomic structure

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