rocks and hard places

As we have had no stone we have been busy on side tasks. Now we have finished redigging the footings for the 12m roundhouse. Our excavations had revealed a wide range of beach deposits from boulders up to 900mm across and pebbles about 50mm across, some sandy bits but all coarse beach deposits and easily dug- until we exposed the dreaded dyke. It is solid dolerite, very very hard, probably about 25 million years old and crosses our founds just where we don't want it. Managed to reduce it by half by bashing away with the 3ft bucket but the rest is a genuinely immovable object. Now that is the downside. The upside is that it is over 450mm from finished floor level and over 600mm from our original ground level. This means we can put a step in the footings and still comply with the Building Regs. though it will be a total pain to do.