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TONOLITE Tonolite is a light-colored plutonic igneous rock largely consisting of a sodium plagioclase and quartz. If the rock contains less than 20% quartz it is likely to be a monzonite, which is otherwise similar. |
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TONOLITE Tonolite is a light-colored plutonic igneous rock largely consisting of a sodium plagioclase and quartz. If the rock contains less than 20% quartz it is likely to be a monzonite, which is otherwise similar. |
