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ch3 voc
earth science
| Term | Definition |
|---|---|
| mineral | naturally occurring inorganic solid that has a definite chemical composition and an orderly internal atomic structure |
| crystal | solid in which the atoms are arranged in an orderly, repeating pattern |
| magma | hot melted rock material beneath earth's surface |
| silicate | mineral that contains silicon and oxygen and usually one or more other elements |
| hardness | measure of how easily a mineral can be starched, is determined by the arrangement of minerals atoms |
| luster | describes the way mineral reflects light from its surface ,can be either metallic or nonmetallic |
| specific gravity | ratio of a minerals weight compared with the weight of an equal amount of water |
| streak | color of a mineral when it is in powered form |
| cleavage | physical property of some minerals that causes them to break along smooth surfaces |
| fracture | physical property of some minerals that causes them to break with uneven rough jagged surfaces |
| gem | beautiful rare highly prized mineral that can be worn in jewlery |