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GEO Exploration Hub Latest Questions

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mack- mann
Asked: 2023-11-11T09:41:38+05:00

Igneous Rock clasification

Using the Igneous classification chart according to Silica content, would it be correct if a rock has 50% Silica then the components would be about 8% Olivine, 77% Pyroxene, and about 15% Calcium Plagioclase? Likewise if a rock has 45% Silica then then it would have 55% Olivine and 45% Pyroxene? Please let me know if I am interpreting the chart correctly? Many thanks

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