| Home |
| Rocks and Minerals |
| Shale |
| Hornfels |
| Diabase |
| Limonite |
| Greenstone |
| Rhyolite |
| Quartzite |
| Conglomerate |
| Limestone |
| Sandstone |
| Calcite |
| Quartz |
Diabase |
| Diabase is an igneous rock found along Rocky Ridge. This rock was magma long ago that cooled. It can also be difficult to break. Look for small "salt and pepper" crystals in this rock. |
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