BGS mineralogy and petrology collection record

Sample number S14356
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Ophitic Dolerite'
Stratigraphy Not entered
Comments Small feldspar dolerite; Memoir, p. 163
Locality details Allt nan Clar at 850 ft contour
50k map sheet Mull (44)

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Map reference NM 6218 3634
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


S14356

Cross Polarized, S14356

Plane Polarized, S14356

Plane Polarized, S14356