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Rocks and minerals
| Term | Definition |
|---|---|
| ion | atom or molecule with a net electric charge due to the loss or gain of one or more electrons. |
| crystal | piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces. |
| inorganic | not consisting of or deriving from living matter. |
| mineral | a solid inorganic substance of natural occurrence |
| silicates | a salt in which the anion contains both silicon and oxygen, especially one of the anion SiO42−. |
| cleavage | sharp division; a split. |
| crystallization | solid–liquid separation technique |
| igneos rock | one of the three main rock types |
| metamorphic rock | transformation of a pre-existing rock |
| metamorphism | alteration of the composition or structure of a rock by heat, pressure, or other natural agency. |
| precipitate | cause (a substance) to be deposited in solid form from a solution |
| rock cycle | idealized cycle of processes undergone by rocks in the earth's crust |
| density | the degree of compactness of a substance |
| fracture | break or cause to break. |
| hardness | the quality or condition of being hard. |
| luster | a gentle sheen or soft glow, especially that of a partly reflective surface. |
| streak | a long, thin line or mark of a different substance or color from its surroundings. |
| lava | hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this. |
| sediment | matter that settles to the bottom of a liquid; dregs. |
| sedintary rock | types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water |
| sedimentation | tendency for particles in suspension to settle out of the fluid |
| extrusive | magma reaches the Earth's surface a volcano and cools quickly |
| intrusive | causing disruption or annoyance through being unwelcome or uninvited |
| volcanic rock | a rock formed from magma erupted from a volcano |
| magma | hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling |
| rock | solid mineral material forming part of the surface of the earth and other similar planets, |
| vein | a fracture in rock containing a deposit of minerals or ore and typically having an extensive course underground |
| gemstone | a precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry. |
| ore | a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted |
| ore deposit | natural concentration of one or more minerals within the host rock. |
| cementation | he binding together of particles or other things by cement. |
| lithification | process in which sediments compact under pressure |
| organic | of, relating to, or derived from living matter |
| foliation | the process of being split into thin sheets or laminae. |
Created by:
Alex Kidd
Popular Earth Science sets