BGS mineralogy and petrology collection record

Sample number S16591
Sample Donor Anderson,J.G.C.
Rock name 'Original entry: Porphyry More Acid Than Rossalite'
Stratigraphy Not entered
Comments Intrusion
Locality details 0.25 mile due S of top fork of main stream in Glen Clachaig
50k map sheet Mull (44)

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Map reference NM 5484 3360
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


S16591

Cross Polarized, S16591

Plane Polarized, S16591

Plane Polarized, S16591