A boulder is sandstone
Stone for finishing, stone for paving, stone for a landscape design.
Boulder €€€ fragment of mountain breed, having a diameter on long axes over 100 mm (shallow boulder). Neokatannyy, the acute-angled boulder is often named a block.
Boulder a quarry
Stone for finishing, stone for paving, stone for a landscape design
Boulder a quartz
Boulders are granit a diameter from 50sm, the kind made old has a surface of stone.
Boulder of marine
Boulder of river
Boulder of steppe