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Typical Minerals Na/Ca PLAGIOCLASE & MAFICS (amphibole)about 50/50 Quartz - absent to trace |
Detail Description
In this detail we see the mixed amphibole and translucent, white sodium plagioclase although the black amphibole overwhelms the eye. But look carefully and you will still see lots of Na/Ca plagioclase. |
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| Last Update: 9/29/00 | e-mail: (Fichtels@jmu.edu) |