On the black mica of the granite of Leinster and Donegal : and its probable identity with lepidomelane / by Samuel Haughton.
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On the black mica of the granite of Leinster and Donegal : and its probable identity with lepidomelane / by Samuel Haughton. Credit: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.. Public Domain Mark