Zircon and Tourmaline Are Dense, Highly Insoluble, Physically Tough, Chemically

question 106

Multiple Choice

Zircon and tourmaline are dense, highly insoluble, physically tough, chemically stable, minor minerals of igneous and metamorphic rocks.In which sedimentary rock might you expect to find these minerals concentrated?

• A)sandstone lithified from quartz-rich beach sand
• B)limestone representing lithified coral-reef carbonates
• C)a thin, upper, mudstone portion of a thick wacke bed with graded bedding
• D)evaporite deposits of gypsum and salt

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