| A | B |
|---|
| Luster | The way a mineral reflects light from its surface |
| Intrustive Rock | Igneous rock that forms when magma hardens beneath Earth's surface |
| Texture | The look and feel of a rock's surface, determined by the size, shape, and pattern of a rock's grains |
| Foliated | Term used to describe metamorphuic rocks that have grains arranged in parallel layers or bands |
| Igneous Rock | A type of rock that forms from the cooling of molten rock at or below the surface |
| Extrustive Rock | Igneous rock layer formed when lava flows onto Earth's surface and hardens |
| Moh's Hardness Scale | A scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals |
| Sedimentary Rock | A type of rock that forms when particles from other rockes or the remains of plants and animals are pressed and cemented together. |
| Metamorphic Rock | A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions |
| Sediment | Small solid pieces of material that come from rocks or organisms; earth materials deposited by erosion |
| Streak | The color of a mineral's powder |
| Inorganic | Not formed from living things or the remains of living things |
| Mineral | A naturally occuring, inorganic solid that has a crystal structure and a definite chemical composition |
| Crystal | A solid in which the atoms are arranged in a pattern that repeats again and again |
| Grains | The particles of minerals or other rocks that give a rock its texture |
| Fracture | The way a mineral looks when it breaks apart in an irregular way |
| Erosion | The process by which water molecules in liquid water escape into the air as water vapor |
| Deposition | Process in which sediment is laid down in new locations |
| Compaction | The process by which sediments are pressed together under their own weight |
| Rock Cycle | The series of procceses on the surface and inside Earth that slowly changes rocks from one kind to another |
| Cleavage | The minerals ability to split easily along flat surfaces |
| Cementation | The process by which dissolved minerals crystallize and glue particles of sediment together into one mass |
