| A | B |
|---|
| Mineral | A naturally occurring, inorganic solid that has no definite chemical coposition and crystal shape |
| Crystal | A solid in which the atoms or molecules are arranged in a definite pattern that is repeated |
| Luster | the way a mineral relects light from it's surface. |
| Hardness | The ability of a mineral to resist being scratched. |
| Streak | The color of powder scraped off a mineral when rubbed against a hard rough surface. |
| Density | The amount of matter in a given space. |
| Metals | Element that have shiny surfaces and conduct electricity. |
| Nonmetals | Elements that have dull surfaces and are poor conductors of electicity. |
| Gemstones | A hard beautiful durable substance that can be cut and polished for jewelry. |
| Rocks | A hard substance composed of one or more minerals. |
| Sedimentary | Something formed by compacting and cementing of sediments |
| Metamorphic | Something formed as a result of chemical reactions, heat and pressure. |
| Igneous | formed from molten rock. |
| Rock Cycle | The interrelated process that cause the continuous changing of rocks from one kind to another. |
| Extrusive rocks | Rocks formed from lava |
| Intrusive rocks | Rocks formed when magma forces its way upward |
