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brunette girl on the beach with black sand
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Brunette Girl On The Beach With Black Sand

While some beaches are predominantly made of black sand, even other colour beaches (e.g. gold and white) can often have deposits of black sand, particularly after storms. Larger waves can sort out sand grains leaving deposits of heavy minerals visible on the surface of erosion scarps.
Placer deposits
Black sands are used by miners and prospectors to indicate the presence of a placer formation. Placer mining activities produce a concentrate that is composed mostly of black sand. Black sand concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous processes into a common mineral-suite that becomes black sands after weathering and erosion.

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Filename:352514.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#brunette #girl #beach #black #sand
Filesize:52 KiB
Date added:Jan 19, 2011
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