BGS mineralogy and petrology collection record

Sample number S99994; MRPROGKLM1119;
Sample Donor Fortey,N.J.; Redwood, S.D.;
Rock name Tuff. 'Original entry: Tuff'
Stratigraphy Devonian.
Comments silicified tuff with vuggy fractures, crossed by zones of very pale ?argillaceous alteration
Locality details Glen Devon area
50k map sheet Stirling (39)

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Map reference NO -139 0804
Year collected 1988 
Bore name Not applicable
Confidentiality No restrictions