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Rocks and Minerals

DefinitionTerm
A naturally occurring, inorganic, solid, that has a crystal structure, and a definite chemical composition Minerals
One or more minerals and/or the remains of living things(fossils) Rocks
A special quality or trait that makes a thing different from others, help us determine IF a sample is a mineral Characteristics
nonliving; does not come from living or once living things Inorganic
something that comes from the Earth, not human made Naturally occurring
the orderly repeating pattern of atoms that form a crystal Crystalline structure
always contains certain elements in definite proportions. Definite chemical composition
helps us determine which mineral a sample is Physical properties
the color of the minerals, but is not always reliable Color
The way a mineral reflects light; two basic categories include: metallic (shines like a metal), non-metallic (the exact opposite) Luster
the ability of a mineral to resist being scratched Hardness
The color of the mineral’s powder when scratched against a streak plate Streak
Two ways to describe how a mineral breaks: Cleavage = when you can tell where the mineral will break; it breaks along flat, smooth lines. Fracture = you can’t tell where it will break; it breaks along uneven or jagged lines. Cleavage/Fracture
Created from particles of other rocks or remains of plants and animals which are pressed and cemented together. Sedimentary rock
forms when molten rock (lava or magma) cools and hardens; sub types - Extrusive and Intrusive Igneous rock
They are formed when an existing rock is changed by extreme temperature, pressure, or chemical reactions. Metamorphic rock
The continual process by which new rock forms from old rock material. Rock cycle
What something is made out of. The parts that make something up. Composition
Created by: mcdannald
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