Scottish National Dictionary (1700–)
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First published 1976 (SND Vol. X, list of scientific terms with Scottish connections).
This entry has not been updated since then but may contain minor corrections and revisions.
CLOUSTONITE. Geol. A black asphaltic mineral found in limestone and flagstone in Orkney (1879 Miner. Mag. III. 222).
[Named by M. F. Heddle after Rev. Charles Clouston, of Sandwick, Orkney (1800–84).]
