Which mineral is listed second in the Bowen's Reaction Series sequence?

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Multiple Choice

Which mineral is listed second in the Bowen's Reaction Series sequence?

Explanation:
Bowen's Reaction Series shows which minerals crystallize from magma as it cools, based on the stability of minerals at high temperatures. Olivine forms at the hottest conditions, so it appears first. As cooling continues, olivine becomes unstable and pyroxene crystallizes next, making it the second mineral in the sequence. This ordering reflects the decreasing temperatures at which these minerals remain stable, with other minerals like amphibole and biotite forming later, and quartz and feldspars appearing only at the cooler end. So pyroxene is the correct second mineral.

Bowen's Reaction Series shows which minerals crystallize from magma as it cools, based on the stability of minerals at high temperatures. Olivine forms at the hottest conditions, so it appears first. As cooling continues, olivine becomes unstable and pyroxene crystallizes next, making it the second mineral in the sequence. This ordering reflects the decreasing temperatures at which these minerals remain stable, with other minerals like amphibole and biotite forming later, and quartz and feldspars appearing only at the cooler end. So pyroxene is the correct second mineral.

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