Subject ASC00028b8
The Quarterly journal of the Geological Society of London.
v.42 (1886), Page 397 (1886)
Smithsonian Libraries
BHL Page 37054078
Keywords
augite labyrinth felspars crystals nicols azimuth labyrinthine crystals of augite mineral Augite-andesite from Carlion near St. Minver Cornwall. eruptive rocks Mr. F. Rutley