During the excavation of a small gravel pit one mile east of the village of Center Strafford, N. H., a water-worn ledge was exposed in which vesuvianite is present in long, thin, lens-like masses three or four inches wide and ten to fifteen feet in length. A small lens-shaped mass of muscovite mica and fluorescent apatite in this ledge is also worthy of description. The formation in which the vesuvianite and associated minerals occur is, according to F. J. Katz (I9I7), the Rindgemere formation of Carboniferous (Pennsylvanian ?) age, consisting of slates, phyllites and schists with occasional interbedded argillaceous quartzites and limestones. At this locality the formation is primarily quartzitic with thin beds of very impure limestone. A granitic body outcrops about one hundred feet west of the vesuvianite deposit and is considered to be of post- Carboniferous age.

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