Concept 3 Quiz

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Describe the physical properties of minerals and how they can be used for mineral identification.

This activity contains 10 questions.

The property that is a measure of the resistance of a mineral to abrasion or scratching is

streakhardnesscleavagefracturecrystal form

The scale used by geologists to measure the hardness of a mineral is called __________ scale.

MohsSmith'sBowen'sPlayfair'sRichter's

	Luster is the external expression of a mineral's internal orderly arrangement of atoms.

	True False

	Vitreous, pearly, and silky are types of metallic lusters.
	Vitreous, pearly, and silky are types of metallic lusters.
	True False

Which of the following properties is the least reliable to help identify a mineral?

hardnesscleavagecolorlusterstreak

Breakage along planes of weak bonding producing distinctive, smooth, flat surfaces is known as

fracturedecaycleavagecrystallizationnone of the above

The hardest mineral substance is

glasscorundumrubiestalcdiamond

Fractures resulting in smooth curved surfaces, such as broken glass, are called __________ fractures.

shatteredhexagonalcovalentconchoidalnone of the above

Which type of material will effervesce (fizz) when in contact with acidic solutions (such as hydrochloric acid)?

buckyballsglassdiamondssilicatescarbonates

	The exact chemical composition and the internal structure must be known to positively identify a mineral.

	True False

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