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OpenStudy (anonymous):
Which of these is a mineral silicate? A. Galena B. Quartz C. Calcite D. Hematite
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OpenStudy (taramgrant0543664):
Silicate minerals contain relatively high amounts of calcium, magnesium, and iron oxides. The composition of Hermatite is Fe2O3 which is an iron oxide.
OpenStudy (anonymous):
so its d you are right
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