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20 Cards in this Set

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