What is a kind of granite from Luxullian, Cornwall, characterized by the presence of radiating groups of minute tourmaline crystals called?
luxullianite — A kind of granite from Luxullian, Cornwall, characterized by the presence of radiating groups of minute tourmaline crystals. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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