Basalt deposits frequently cover areas on many thousands of square kilometers. Basalt differs from granite in being a fine-grained extrusive rock and having a higher content of Iron and Magnesium.Basalt continuous fiber
is a hard,dense,dark volcanic rock chieftly composed with plagioclase,
pyroxene, and olivine. The density of basalt rock is between 2.8 and 2.9
g/cm3. It is also extremely hard - 5 to 9 on Mho's scale. This gives
basalt a superior abrasion resistance and casted basalt is often used as
a paving and building material.
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