Minerals: Question Preview (ID: 22646)


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On Mohs' hardness scale, which of the following minerals is harder than quartz?
a) talc b) apatite c) gypsum d) topaz
A mineral's streak
a) is more reliable than color in identifying a mineral b) reveals the mineral's specific gravity c) is the same as a luster test d) reveals the mineral's crystal structure
Which of the following factors is NOT important in the formation of minerals?
a) heat b) volcanic activity c) presence of ground water d) wind
Which of the following terms is NOT used to describe a mineral's luster?
a) pearly b) waxy c) dull d) hexagonal
Which of the following is considered a special property that applies to only a few minerals?
a) color b) luster c) steak d) magnetism
Which of the following physical properties can be expressed in numbers?
a) luster b) hardness c) color d) reaction to acid
Which of the following minerals would scratch fluorite?
a) talc b) quartz c) gypsum d) calcite
A naturally formed, inorganic solid with a definite internal geometric structure is called a
a) compound b) atom c) mineral d) element
___________is the tendency of minerals to break along flat surfaces.
a) Cleavage b) Density c) Hardness d) Fracture
Gold and silver are ______________ because they are each composed of a single type of atom.
a) atoms b) elements c) compounds d) ore
Aluminum comes from a mineral ______________ called bauxite.
a) element b) ore c) compound d) mineral
A material's ___________________is defined as its mass divided by its volume.
a) fracture b) density c) hardness d) cleavage
If the atoms of a substance are arranged in a specific, repetitive pattern, the substance is
a) crystalline b) a compound c) colorful d) easily scratched
The mineral calcite, CaCO3, is an example of a
a) carbonate b) silicate c) sulfate d) halide
The nonsilicate minerals
a) do not contain oxygen b) are all rare substances c) all display good cleavage d) include native elements
In addition to reclamation, a good way to reduce the environmental effects of mining is to
a) recycle materials b) dig deeper mines c) use more metals d) flush mines with water
The color of the powder that a mineral leaves on a piece of white, unglazed porcelain is called the mineral's
a) hardness b) luster c) streak d) scratch
What are silicate minerals not always made of?
a) oxygen b) silicon c) hydrogen d) none of the above
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