1850 M. J. Berkeley & C. E. Broome in 5 369 Unilocular, forming little pitch-brown rather convex dots with a paler cloudy narrow border.
1912 A. H. Phillips ii. x. 468 Allanite... Color, pitch brown to black or yellowish.
2000 (Nexis) 1 Dec. 105 I use French roast [coffee], dark as velvet, pitch-brown.