Subject ASC0001n8k
The Quarterly journal of the Geological Society of London.
v.54 (1898), Page 116 (1845)
Smithsonian Libraries
BHL Page 35589789
Keywords
Rock Ryromeride Boulay Bay quartz rock pyromeride gas-vesicles diagrams microscopic view mineral pyromeridal rock boulay bay gas Pyromeride Quartz Boulay Bay Pyromeridial rock Boulay Bay Elongated gas-vesicles