BGS mineralogy and petrology collection record

Sample number S16743
Sample Donor Wilson, J.S.G.
Rock name 'Original entry: Keratophyre'
Stratigraphy Not entered
Comments Inclined sheet; Memoir, p. 228
Locality details 4800 ft SW of Derrynaculan
50k map sheet Mull (44)

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Map reference NM 5557 2816
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


S16743

Cross Polarized, S16743

Plane Polarized, S16743

Plane Polarized, S16743