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Nick Barber 🌋 @volcannick.bsky.social · 06/05/2026

Outstanding tonalite outcrop on the Scaglia Santa Maria at Capo Vaticano, Calabria today. Look at those enclaves! Those beefy biotites! 😍

Foreground: Tonaolite boudlers with weak fabrice cross cut by massive biotite-feldspar pegmatite dikes
Background: Tyrhenian Sea off coast of Capo Vaticano, Calabria

Close up of the pegmatite veins cross-cutting tonalites. Abundant amphibole, biotite, and feldspar. Scale bar in foreground.

Gorgeous tonalite. Tonalite cross cut by two generations of veins, one of which cuts through a rounded mafic enclave that is also foliated by a micro-fault.

Large and small veins - bigger veins chock full of biotite.

Barry Goldman @barrygoldman1.bsky.social · 06/05/2026

ok... what is a tonalite? i see varoius sorts of igneous rock intruding each other.