Abstract
Sillimanite replacing biotite, K-feldspar as by-product, embrechite from Keramoal in Brittany (France)
David Shelley; A note on the relationship of sillimanite to biotite. Geological Magazine 1968;; 105 (6): 543–545. doi:
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Sillimanite replacing biotite, K-feldspar as by-product, embrechite from Keramoal in Brittany (France)