Rock Cycle - Rocks (5A) Quantity in Basket: none Code: RC-R5A Price: $9.75 Shipping Weight: 2.00 pounds Quantity: Match different sands with their mother rocks. Module contains samples from Rodeo Beach, Montara, Long Beach, Bodega Bay in California plus samples of quartz, feldspar, basalt, granite, chert and serpentinite. (code RC-R5A)