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cute young brunette girl shows off on the sand at the sea
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Cute Young Brunette Girl Shows Off On The Sand At The Sea

ISO 14688 grades sands as fine, medium and coarse with ranges 0.063 mm to 0.2 mm to 0.63 mm to 2.0 mm. In the United States, sand is commonly divided into five sub-categories based on size: very fine sand (1⁄16 - ⅛ mm diameter), fine sand (⅛ mm - ¼ mm), medium sand (¼ mm - ½ mm), coarse sand (½ mm - 1 mm), and very coarse sand (1 mm - 2 mm). These sizes are based on the Krumbein phi scale, where size in Φ = -log base 2 of size in mm. On this scale, for sand the value of Φ varies from -1 to +4, with the divisions between sub-categories at whole numbers.
Constituents
The most common constituent of sand, in inland continental settings and non-tropical coastal settings, is silica (silicon dioxide, or SiO2), usually in the form of quartz, which, because of its chemical inertness and considerable hardness, is the most common mineral resistant to weathering.

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Filename:514041.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#cute #young #brunette #girl #shows #sand #sea
Filesize:59 KiB
Date added:Oct 25, 2012
Dimensions:850 x 551 pixels
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