Earth, Minerals - Part 1: Question Preview (ID: 4510)

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Inorganic means a mineral contains:
a) no materials that were once part of living things
b) compounds
c) materials made by humans
d) parts of living things

The color of a mineral\'s powder is called:
a) streak
b) hardness
c) density
d) luster

Tiny pieces of a mineral:
a) still have the same crystal structure
b) be metallic
c) be roughly the same size
d) have the same shape

Magma that cools slowly leaves crystals that are:
a) large
b) cubic
c) very hard
d) small

Hard, colorful minerals with brilliant or glassy lusters are:
a) gemstones
b) ores
c) pure metal
d) alloys

A factor that affects the size of mineral crysatls formed in magma is:
a) rate of cooling
b) elements dissolved in hot water
c) evaporation
d) fluorescence

Metal tools, machinery, metal filaments in a light bulb, steel girders in office buildings all:
a) began as minerals inside the Earth\'s crust
b) are rare
c) are magnetic
d) are gems

The hardest known mineral is:
a) diamond
b) gold
c) quartz
d) talc

Minerals that do not split apart evenly have:
a) fracture
b) cleavage
c) crystal
d) luster

The term used to describe how light is reflected from a mineral's surface is:
a) luster
b) fluorescence
c) streak
d) density

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