Properties of Minerals
How Minerals Form
Mineral Resources
Types of Rock
Rock Cycle
100
The scale of minerals from one (the softest) to ten (the hardest) that is used to determine the hardness of a mineral
What is the MOHS Scale?
100
Two ways minerals form
What is through crystallization of molten materials, & through the crystallization of materials dissolved in water?
100
A hard , colorful mineral that has a brilliant, or shiny, luster and is often used in jewelry
What is a gemstone?
100
The basis on which geologists classify rock
What is how the mineral is formed?
100
Occurs when running water or wind loosen and carry away the fragments of rock
What is erosion?
200
The property of minerals that is usually the least useful in identification
What is color?
200
A narrow channel or slab of a mineral that is much different from the surrounding rock
What is a vein?
200
A rock that contains a metal or economically useful mineral
What is an ore?
200
The look & feel of a rock's surface
What is texture?
200
A type of sedimentary rock that forms when minerals that are dissolved in a solution crystallize
What is a chemical rock?
300
The color of the powdered mineral that is rubbed on a porcelain plate for identification purposes
What is streak?
300
A mixture in which one substance dissolves in another
What is a solution?
300
Anyone who searches for an ore deposit
What is a prospector?
300
The type of rock that forms directly from magma or lava
What is igneous rock?
300
Metamorphic rocks that have their grains arranged in parallel layers or bands
What is a foliated rock?
400
The way a mineral breaks evenly along flat surfaces
What is cleavage?
400
Size of crystals formed directly from magma that cools slowly, underground
What are large crystals?
400
The process that is necessary to remove the metal from the ore after miners remove the ore from a mine
What is smelting?
400
The type of rock that forms from the broken pieces of other types of rock, and often has fossils found in them
What is sedimentary rock?
400
Igneous rock that formed when magma hardened beneath the Earth's surface
What is intrusive rock?
500
The five defining characteristics of a mineral
What is inorganic, solid, naturally occurring, with a definite chemical composition, & crystal structure?
500
Size of crystals that cool directly from lava quickly, and above ground?
What are small crystals?
500
A solid mixture of two or more metals
What is an alloy?
500
The type of rock that forms from any other type of rock that is exposed to heat & pressure
What is metamorphic rock?
500
The building, destroying, and changing of rock inside the Earth's crust
What is the rock cycle?
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