BGS mineralogy and petrology collection record

Sample number	S99996; MRPROGKLM1121;
Sample Donor	Fortey,N.J.; Redwood, S.D.;
Rock name	Rhyodacite. 'Original entry: Rhyodacite'
Stratigraphy	Devonian.
Comments	pale alteration of biotite rich rhyodacitic lava or tuff
Locality details	Glen Devon area
50k map sheet	Stirling (39) View images in GeoScenic related to 'Stirling' View the geology near 'Stirling'
Map reference	NO -150 0771
Year collected	1988
Bore name	Not applicable
Confidentiality	No restrictions