Examlex
In a division problem, change all division to multiplication in order to simplify.
Magnetite
An iron oxide mineral that is typically black and is strongly magnetic.
Quartz
A very common rock-forming silicate mineral consisting of crystalline silica.
Feldspar
A very common rock-forming silicate mineral that is abundant in most igneous and metamorphic rocks and some sedimentary rocks.
Calcite
A common rock-forming calcium carbonate mineral occurring in limestone and a variety of water-related deposits.
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