Subject ASC0000zqs
The Quarterly journal of the Geological Society of London.
v.58 (1902), Page 683 (1902)
Smithsonian Libraries
BHL Page 41676206
Keywords
rock geology quartz scapolite sphene proxene orthoclase-microperthite pyroxene microscope magnified image microscopic image Quartz Orthoclase-microperthite Scapolite intergrowth vein Pyroxene Sphene microscopic