Exploratorium

Exploratorium left a tip at Ocean Beach

Point Lobos Ave (at Great Hwy), San Francisco, CA | August 16, 2011
Bring a magnet! We love to collect “black sand” or magnetic mineral magnetite at Ocean Beach. Drop a magnet inside your plastic cup & wave bottom of the cup just above sand to attract minerals. Demo:
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Ocean Beach
9.6
San Francisco, CA
Beach
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