Rock Types

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|                                                                      |
|                Volcanic  -  Basalt, Dacite, Trachyte, Rhyolite       |
|                                                                      |
| Igneous        ------------------------------------------------------|
|                                                                      |
|                Plutonic  -  Granite, Granodiorite, Diorite, Syentite |
|                                                                      |
|----------------------------------------------------------------------|
|                                                                      |
| Sedimentary                 Conglomerate, Breccia, Sandstone         |
|                             Mudstone, Shale, Limestone               |
|                                                                      |
|----------------------------------------------------------------------|
|                                                                      |
|                Massive  -   Quartzite, Marble, Hornfels              |
|                                                                      |
| Metamorphic    ------------------------------------------------------|
|                                                                      |
|	         Foliated -   Slate, Gneiss, Schist                    |
|                                                                      |
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