BGS mineralogy and petrology collection record

Sample number S15570
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Felsite'
Stratigraphy Not entered
Comments Loch Ba Ring-dyke; crushing of Loch Ba dyke outer edge; Memoir, p. 346
Locality details Allt a' Choire Bhain, 1.14 mile N 14 deg E from trig pt 1652 ft Beinn Chaisgidle
50k map sheet Mull (44)

View images in GeoScenic related to 'Mull'

View the geology near 'Mull'

Map reference NM 6104 3449
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


S15570

Cross Polarized, S15570

Plane Polarized, S15570

Plane Polarized, S15570