Subject ASC0003tfl

The geological magazine, or, Monthly journal of geology.
Decade 3:v. 7 (1890), Page 537 (1890)
Smithsonian Libraries
BHL Page 30522527

Keywords

rock layers magnify magnified view section circle summit gorner grat gorner grat serpentine slate Slaty Serpentine Gorner Grat geology slaty serpentine microscopic plate

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Species