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ES EMAP Chapter 1
Earth Materials and Processes - Ch1 Minerals
Term | Definition |
---|---|
Mineral | Any naturally occurring, inorganic solid with a definite chemical composition and crystalline structure. |
Crystal | Solid in which the atoms are arranged in an orderly, repeating pattern. |
Magma | Molten rock beneath earth's surface. |
Silicate | A mineral that contains silicon and oxygen. |
Carbonate | A mineral that contains carbon and oxygen. |
Sulfate | A mineral that contains sulfur and oxygen. |
Sulfide | A mineral that contains sulfur but no oxygen. |
Native Element | A mineral that appears as a pure substance in nature. |
Oxide | A mineral that contains oxygen, but not sulfur, carbon, or silicon. |
Halide | A mineral that contains a halogen. |
Hardness | A mineral's resistance to being scratched. |
Color | The way light reflects from a large "chunk" of mineral. |
Streak | The color of a powdered form of a mineral. |
Specific Gravity | The density of a mineral compared to the density of water. |
Luster | The way a mineral reflects light. |
Fracture | The breakage pattern in which irregular surfaces result. |
Cleavage | The breakage pattern in which flat surface(s) result. |
Fredrich Mohs | A 19th century scientist who developed a method to classify mineral hardness. |
Inorganic | Not made from a life process or from the remains of a once-living organism. |
Organic | Material resulting from a life process (contains carbon). Made from the remains of a once-living organism. |