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darius_moore
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Which of the following properties is generally the least useful in identifying minerals?
Color
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Wich of the following is true about rocks?
Most rocks are a mixture of minerals
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The process of mineral formations from magma is called_____.
Crystallization
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Earths thin, rocky outer layer is its _____.
Crust
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Why ice in glacier considered to be a mineral, but water from a glacier is not?
Ice is a solid, but water is not
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All minerals in the sulfate and sulfide groups contain what element?
Sulfur
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The resistance of a mineral to being scratched is called ____.
hardness
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In which of the following settings would a metamorphic rock most likely form?
8 kilometers below the earths surface
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What determines the properties of a mineral?
Composition and structure
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The three groups of rocks are classified by ____.
how they form
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Minerals with the silicon-oxygen structure, shown in figure 2-1, are classified into what group?
Silicates
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A magma's viscosity is directly related to its___.
silica content
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Sedimentary rocks with the ripple marks suggest that the rocks formed____.
along a beach or stream bed
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Which of the following changes may occur during metamorphism?
- certain minerals may recrystalize
- The rock becomes more compact
- crystals may grow
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which of the following is a use for fossils found in sedimentary rocks?
- indicating when the rock formed
- matching rocks of the same age found in different places
- interpreting past environments
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A metamorphic rock can be classified according to its _____.
texture and composition
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What is density of a mineral?
the ratio of a mineral's mass to its volume
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What type of rocks are formed by processes powered by the sun?
Sedimentary rocks
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Which of the following is NOT one of the three types of rock?
lava
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Which of the following is NOT one of the three types of rock?
Magma
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A rock that forms when magma hardens beneath Earth's surface is called an _____.
intrusive igneous rock
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Mohs scale is used to determine what property of minerals?
hardness
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The process of mineral formation from magma is called ______.
crystallization
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As rate of cooling of igneous rocks increase, the size of the crystals that form
decreases
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