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Usgs Minerals Information Silica

Minerals 1.Mineralsdr.R.B.Schultzdr.R.B.Schultz 2.The earth is made of rocks, which are in turn made ofminerals.In this part of the course well learn howto identify common minerals and rocks.In order for something to be classified as a mineral, itmust meet five 5 criterionminerals are 1.

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