BGS mineralogy and petrology collection record

Sample number S4806; S4806/a;
Sample Donor Hill, J.B.
Rock name 'Original entry: Orthofelsite'
Stratigraphy Not entered
Comments Trachyte, Carlsbad twinning; Mid Argyll Mem, p. 108
Locality details Drishaig, Upper Loch Fyne
50k map sheet Inverarray (37)

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Map reference NN 1583 1069
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


S4806

Cross Polarized, S4806

Plane Polarized, S4806

Plane Polarized, S4806


S4806/a

Cross Polarized, S4806/a

Plane Polarized, S4806/a

Plane Polarized, S4806/a