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chapter 3 earth scie
studing of th earth on chapter 3 vocab
| Term | Definition |
|---|---|
| mineral | naturally inorganic solid with a definite chemical composition and an orderly internal atomic structure |
| magma | hot, melted rock material beneath Earth surface |
| crystal | solid in which the atoms are arranged in an orderly repeating pattern |
| luster | describes the way a 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 volume of water |
| streak | color of a mineral when its is in powdered form |
| cleavage | physical property of some minerals that causes them to break along smooth flat surfaces |
| fracture | physical property of some minerals that causes them to break with uneven rough or jagged surfaces |
| gem | beautiful rare highly prized mineral that can be worn in jewerly |