CLAY
IDR 15.000 / kg
Clay is a naturally occurring aluminium silicate composed primarily of
fine-grained minerals. Clay deposits are mostly composed of clay
minerals, a subtype of phyllosilicate minerals, which impart plasticity
and harden when fired or dried; they also may contain variable amounts
of water trapped in the mineral structure by polar attraction. Organic
materials which do not impart plasticity may also be a part of clay
deposits.
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