BGS mineralogy and petrology collection record

Sample number S33324; MR17029;
Sample Donor Davidson, C.F.
Rock name 'Original entry: Albite-Augite-Phyric Syenitic Porphyry'
Stratigraphy Not entered
Comments Segregation in quartz-hypersthene dolerite; albite-anorthoclase-quartz-hornblende
Locality details Quarry, Hilltown of Knapp, Longforgan
50k map sheet Perth (48)

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Map reference NO 282 317
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S33324

Cross Polarized, S33324

Plane Polarized, S33324

Plane Polarized, S33324