BGS mineralogy and petrology collection record

Sample number S29363
Sample Donor Ross, George
Rock name 'Original entry: Felspar-Phyric Rather Acid Porphyrite Or Andesite With Biotite'
Stratigraphy Not entered
Comments Felspar-phyric rather acid porphyrite or andesite with biotite, in junction of felsitic intrusion with ashy sediments cf. 27582
Locality details Streamlet joining Scar Burn from W 250 feet above entry of streamlet into Scar Burn
50k map sheet Sanquhar (15)

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Map reference NS 747 224
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


S29363

Cross Polarized, S29363

Plane Polarized, S29363

Plane Polarized, S29363