Browse Items (22 total)

  • Collection: (LT) Littleton Formation Metamorphic Suite -- New Hampshire

coarse crystals


Sillimanite-bearing, somewhat altered to muscovite, contains muscovite psuedomorphs

Foliated, quartzitic

Dark, banded

Synkinimatically deformed w/ augen-like feldspar ribbons


Has quartz-feldspar pods

Staurolite found only in pelitic layers, absent in quartz-rich layers

Banded injection

Large chiastolite crystals, partly retrograde to muscovite

Large sillimanite crystals, largely retrograde to muscovite

Contains large staurolite crystals

Large poikilitic hornblende porphyroblasts

Dense, phyllitic
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