Subject ASC0000zxa

The Quarterly journal of the Geological Society of London.
v.37 (1881), Page 43 (1881)
Smithsonian Libraries
BHL Page 43971192

Keywords

map geology schist steatite quarry plas goch Plas Goch green schist steatite schist intrusive rock magnetite serpentine Geological drawing rocks rock types quarry detail. Schist variations. Serpentine Steatite

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