Subject ASC0001dqp
The Quarterly journal of the Geological Society of London.
v.49 (1893), Page 406 (1893)
Natural History Museum Library, London
BHL Page 45959046
Keywords
minerals geology Fig. (slide 473) Diorite No. 3 Decomposition felspar brown mica chlorite epidote operatic felspars Diorite feldspars groundmass crystals