BGS mineralogy and petrology collection record

Sample number S13886
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 Outer granite; Memoir, p. 349
Locality details SE of Cnoc Maol Mhucaig
50k map sheet Mull (44)

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Map reference NM 5798 4227
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


S13886

Cross Polarized, S13886

Plane Polarized, S13886

Plane Polarized, S13886