BGS mineralogy and petrology collection record

Sample number S99225; COLLNOSMS242;
Sample Donor Smith, Martin
Rock name Porphyry. 'Original entry: Feldspar Porphyry'
Stratigraphy Not entered
Comments Feldspar porphyry intrusion
Locality details Lower part Allt Tom Dubh Ghobliach
50k map sheet Tomatin (74W)

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Map reference NH 6847 0224
Year collected 1996 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S99225

Cross Polarized, S99225

Plane Polarized, S99225

Plane Polarized, S99225