Dear community, especially New England petrologists,
we are in need of a list of localities in New England where this rock type occurs:
quartz-chloritoid-garnet-muscovite schist ągraphite
The garnet is less than half a millimeter, but clear, red and euhedral. The black chloritoid blasts are larger than the garnet (2-3 mm). The slightly greyish colour of the mica-rich groundmass points to graphite.
I'm sure someone on the list can easily point out a few localities between MA, VT, NH or ME (or NY) where this type of rock is common?!
many thanks in advance,
Horst
PS: This rock was made into an artefact of archeological value and can't be made into a thin section. No whole-rock analysis either. I haven't even seen a very fresh surface.
--
Horst R. Marschall
Woods Hole Oceanographic Institution
Department of Geology and Geophysics
MS #8
Woods Hole
MA 02543
USA
Office: +1-508-289-2776
Home: +1-508-548-2916
http://www.whoi.edu/profile/hmarschall/
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