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20 Cards in this Set
- Front
- Back
mineral
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a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition.
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inorganic
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the mineral CANNOT form from materials that were once part of a living thing
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crystal
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a solid in which the atoms are arranged in a pattern that repeats again and again
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color
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a mineral characteristic that an easily observed physical property that provides little information
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streak
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a mineral characteristic that is the color of its powder
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luster
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a mineral characteristic that is determined by how light is reflected from a mineral's surface
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density
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a mineral characteristic that is an objects mass per unit volume
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hardness
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a mineral characteristic that can be determined by a scratch test
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crystal systems
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a mineral characteristic that is a part of the six groups in which geologists clasify mineral crystal structures
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cleavage
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a mineral characteristic where a mineral splits easily along flat surfaces
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fracture
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a mineral characteristic that describes how a mineral looks when it breaks apart in an irregular way
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special properties
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a mineral characteristic such as fluorescence, optical properties, reacitity and magnetism
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geode
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a round hollow rock that is often lined with mineral crystals
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crystallization
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the process by which atoms are arranged to form a material with a crystal structure
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magma
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molten material from inside Earth that hardens to form rock
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lava
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magma that reaches the surface and forms rock when it cools and hardens
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solution
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a mixture in which one substance is dissolved in another
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vein
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a narrow channel or slab of a mineral that is different from the surrounding rock
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gemstones
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a hard, colorful mineral that has a brilliant or glassy luster
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smelting
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an ore is mixed with other substances and then melted to separate the useful metal from other elements the ore contains
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