BGS mineralogy and petrology collection record

Sample number COLLNOYW1743; MC9767;
Sample Donor May,F.
Rock name 'Original entry: Quartz Porphyry'
Stratigraphy Not entered
Comments Quartz porphyry, creamy white with prominent quartz phenocrysts, large intrusion in contact with biotite granite
Locality details Sron Nead
50k map sheet Glen Roy (63W)

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Map reference NN 4190 9198
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions