| low fertility soils are better | |
| a combo of clay, silt, sand and gravel | |
| made from calcium carbonate and limestone with seashell fossils | |
| porous limestone made from seashells | |
| made from separate pebbles and rocks | |
| mineral rich soil with small particles that retain water | |
| hard granular rock rich in crystal content especially quartz | |
| composed of basalt and is solid and dense | |
| composed of sand silt and clay it has better drainage than clay | |
| made of clay, calcium carbonate and magnesium carbonate and seashells | |
| stone composed of sand, quartz and minerals primarily feldspar, mica and stone fragments | |
| rocky soil from clay, mud forming into shale and slate then crumbling over time | |
| most common sedimentary rock. formed from clay and mud over het, pressure and time can become slate | |
| rocky soil that retains moisture and heat | |
| rock made from volcanic ash | |