When it comes to finding the perfect beach, folks are usually drawn to pristine white sand and crystal-clear waters. Here we sought out the opposite. Here's our favorite black sand beaches around the world, from the Big Island of Hawaii to the glacial shores of Iceland.
Psilomelane from Germany, rare - protection crystal - #8
Beautiful stripes in the landscape of the Quebrada de Humahuaca, a narrow mountain valley located in the province of Jujuy in northwest Argentina, miles north of Buenos Aires. It is about 96 miles long. - photo from Geology IN