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Minerals

TermDefinition
Mineral Any naturally occurring, inorganic solid with a definite chemical composition and a crystal structure.
Rock A solid made up of many minerals.
Organic Having to do with plants or animals. "Living"
Inorganic Not organic. "Non'living"
Definite Chemical Composition Each mineral has a particular chemical make up. Some are made from only one element while others are compounds or combination of elements.
Crystalline Structure A solid in which the atoms making up the solid are in an orderly and repeated pattern.
Color This is the least useful observation used to identify a mineral.
Luster This is how light is reflected off the surface of a mineral.
Types of Luster Metallic and nonmetallic
Streak The color of the powder residue left on an unglazed tile.
Cleavage The ability to break along flat surfaces.
Fracture The shape and texture of a mineral when it breaks.
Hardness The ability of a mineral to resist scratching. The Mohs scale is used for this.
Density The "heaviness" of a mineral. (Weight divided by the volume)
Solid The mineral has a definite volume and shape. It is neither a liquid or a gas.
Naturally Occurring A substance that is formed by processes that occure in the natural world.
Created by: Mrs. Michel