sand - large-grained quartz dune sand from Monastery Beach, Carmel Bay, California in a 250 ml display bottle with ground glass stopper across the continent from the

across the continent from the Appalachians

This mine is the probable source of fibers that served as reference standards used since around 2000 by the Health and Safety Laboratory (UK)

the immediate zone around the now crystal-lined bubble is altered and becomes more resistant than the surrounding rock and subsequently weathers out

Which is the most likely source of this sand

sand - large-grained quartz dune sand from Monastery Beach, Carmel Bay, California in a 250 ml display bottle with ground glass stopper across the continent from theThis sand is interesting because of the large size of its quartz grains for a dune sand. Monastery Beach is fed sand immediately by San Jose Creek and by the Carmel River farther north. The longshore current that moves sand from north to south along Californias coast contributes to this beach, but the size and irregular shapes of these grains tells us that the primary source must be a local and not particularly long drainage, most likely San Jose