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Silica |ˈsɪlɪkə| Noun Hard Unreactive Colourless Compound Occurs

Front silica
|ˈsɪlɪkə|
Back noun
a hard, unreactive, colourless compound which occurs as the mineral quartz and as a principal constituent of sandstone and other rocks.

DERIVATIVES
siliceous
|-ˈlɪʃəs |
adjective

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