BGS mineralogy and petrology collection record

Sample number S14786
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Quartz Porphyry'
Stratigraphy Not entered
Comments Composite dyke (centre); Memoir, pp. 361, 366
Locality details 0.625 mile S 30 deg E from Lochan nam Ban Uaine
50k map sheet Mull (44)

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Map reference NM 6082 3502
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


S14786

Cross Polarized, S14786

Plane Polarized, S14786

Plane Polarized, S14786