BGS mineralogy and petrology collection record

Sample number S15590
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Granophyre'
Stratigraphy Not entered
Comments Marginal outer granite; Memoir, p. 349
Locality details 0.75 mile E 30 deg N of Torlochan
50k map sheet Mull (44)

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Map reference NM 5660 4151
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


S15590

Cross Polarized, S15590

Plane Polarized, S15590

Plane Polarized, S15590