where did the glass on glass beach come from
Glass Beach (Fort Bragg, California) Glass Beach is a beach in MacKerricher State Park near Fort Bragg, California, that is abundant in sea glass created from years of dumping garbage into an area of coastline near the northern part of the town.[1]
Glass electrode A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion. The most common application of ion-selective glass electrodes is for the measurement of pH. The pH electrode is an example of a glass electrode that is sensitive to hydrogen ions.  Glass electrodes play an important part in the instrumentation for chemical analysis and physico-chemical studies. The voltage of the glass electrode, relative to some reference value, is sensitive to changes in the activity of certain type of ions.