Surfing For In More Than?

George asks…Why do some ternary diagrams have more than three endmembers?I'm confused about ternary diagrams in mineralogy. How come some ternary diagrams have more than three endmembers? Some of them have 8 or more... Also, how come some have more than one miscibility gap? Please explain.Nancy answers:All ternary diagrams have three endmembers, otherwise they would be quaternary diagrams (which require three dimensions to be shown). Sometimes an endpoint of a ternary diagram can be changed

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