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 a geological map near 'Stirling'
Map reference	NO -150 0771
Year collected	1988
Bore name	Not applicable
Confidentiality	No restrictions