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Minerals – Ch 5Minerals – Ch 5Terms Properties Groups Identification Random
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The mass of a substance to the volume is its ____
Answer
Density
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The ability of a mineral to resist scratching is its _____
Answer
Hardness
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Tendency of a mineral to break and form uneven, irregular surfaces
Answer
Fracture
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An inorganic solid with characteristic chemical
composition and physical properties
Answer
Mineral
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Fluorite and Halite belong to what mineral group?
Answer
Halides
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The way that light is reflected from a mineral’s surface
Answer
Home
Luster
True/False: Chatoyancy means “cat’s eye” and has
a silky appearance
Answer
True
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What is the color of a mineral in a powdered
form?
Answer
Streak
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What physical property is unreliable as an
identification clue for minerals?
Answer
Color
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What is the tendency of a mineral to split along specific planes, forming flat surfaces?
Answer
Cleavage
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A solid whose atoms, ions, or molecules are arranged in a regular,
repeating pattern
Answer
Crystal
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What are the 2 main groups of minerals?
Answer
Silicates or Non-silicates
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Minerals are usually _____, meaning they do
not contain carbon
Answer
Inorganic
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Mineral that does not contain silicon and oxygen
(SiO2)
Answer
Nonsilicate
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Mineral that contains silicon and oxygen
compounds
Answer
Silicate
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Answer
True or False:
A mineral that glows in ultraviolet light is phosphorescent
False (fluorescent)
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Oxides, Sulfides, Halides, Carbonates, and Sulfates are all major classes of
what group of minerals?
Answer
Nonsilicate Minerals
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Cubes, hexagonal prisms, and irregular masses are common
mineral structures for what group of
minerals?
Answer
Nonsilicate Minerals
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If an unstable atomic nuclei decays into stable nuclei, the mineral is ____.
Answer
Radioactive
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Answer
What are 3 physical properties mineralogists use to identify
minerals?
Color, streak, hardness, luster, cleavage, fracture,
density, crystal shape
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What class of minerals is the most common on Earth?
Answer
Silicates
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What is the softest mineral on the Moh’s hardness scale?
Answer
Talc
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True/False:
Quartz and Amethyst are examples of Nonsilicate
Minerals
Answer
False; they are Silicates!
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True/False:
Hematite is an example of a mineral in the Oxide group
Answer
True
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True/False:
Galena and Mica both have fracture
Answer
False
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