Browse Items (22 total)

  • Collection: (BKM) Belknap Mountains Ring Complex -- White Mountains, New Hampshire

coarse grained, porphyritic

contact with wall rock is sharp and with very thin, chilled margin

banded, pink to gray color, sharp contact, some hydrothermal alteration has ocurred

porphyritic, pink, coarse grained

abundant dark xenoliths


fine grained

with pink syenite xenoliths

coarse grained

fine grained trap with abundant fragments of brecciated syenite

contains clots of black spheroids
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