Subject ASC0001d93
The Quarterly journal of the Geological Society of London.
v.49 (1893), Page 107 (1893)
Natural History Museum Library, London
BHL Page 45958713
Keywords
geology crystals hornblende biotite opacite Fig. 2. - Hornblende-crystal ( with some biotite) including curved stratuloe of opacite. X30. Hornblende-crystal crystal Hornbklende stratula