Which Common Group of Rock Forming Minerals Has Simultaneous Double

question 114

Multiple Choice

Which common group of rock forming minerals has simultaneous double substitution of Na⁺ for Ca⁺² and Si⁺⁴ for Al⁺³ in its structure and chemical formula?

• A)carbonates
• B)micas
• C)plagioclase feldspars
• D)pyroxenes

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