Browse Items (25 total)

  • Collection: (WCM) Acadian Regional Metamorphism Suite -- Massachusetts

aluminous

orthoclase is concentrated in watery clear megacrysts with crushed borders

meatmorphosed peraluminous volcanic rock

cummingtonite-poor, brownish-green hornblende dominated

cordierite-bearing

mostly hornblende

thin oxide crust

coarse-grained

cordierite-bearing

contains melt-like aggregates

bedded, coarse