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pitchstone; dark green, with greenish spherulites, and abundant microphenocrysts and crystallites of clinopyroxene, and scarcer orthopyroxene

Fiunary, Morvern, [Highland], [Scotland] composite dyke (pitchstone 3 1/2 ft wide, dolerite margins SW 4 1/2 ft, NE 6ft, trend NNW), [Palaeogene] Very similar in appearance to an Arran pitchstone, but on close examination with a hand lens, the microphenocrysts are distinctive. Norman Holgate list gives :"H.1345 Pitchstone from composite dyke (pitchstone 3 1/2 ft wide, dolerite margins SW 4 1/2 ft,…