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Igneous Rocks
Minerals and Rockas Part 2
| Term | Definition |
|---|---|
| Igneous Rocks | Rock type that form when molten material solidifies |
| Environment of Formation | The location where liquid rock solidifies into solid rock |
| Magma | Molten rock that is inside the earth |
| Plutonic | Rock that formed deep within the earth |
| Intrusive | Below earths crust |
| Lava | Molten rock that is outside of the earth |
| Volcanic | Rock that formed on the earths surface |
| Extrusive | Above earths crust |
| Color | For igneous rocks color is broken down into two categories of light and dark |
| Composition | A mixture that make up an igneous rock |
| Felsic | Light colored rocks that have a high aluminum (Al) content an silicon (Al) |
| Mafic | Dark colored rocks that have a high iron (Fe) or magnesium (Mg) content |
| Texture | The appearance or characteristic of a rock |
| Vescular | Texture that consists of gas pockets that give the appearance of having holes |
| Prophyritic | Texture that contains large crystals in a fine grained mixture |
| Crystal Size | Refers to an actual measurement of the individual crystals or aggregate |
| Course or very | The longer the cooling time the longer the crystal size |
| Glassy or fine | The shorter the cooling time the smaller the crystal size |
Created by:
cmbinder197