BGS mineralogy and petrology collection record

Sample number S16954
Sample Donor Anderson,J.G.C.
Rock name 'Original entry: Porphyrite'
Stratigraphy Not entered
Comments Intrusion
Locality details 1100 yds E from summit of A' Chioch
50k map sheet Mull (44)

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Map reference NM 5481 3345
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


S16954

Cross Polarized, S16954

Plane Polarized, S16954

Plane Polarized, S16954