BGS mineralogy and petrology collection record

Sample number S14768
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Quartz Felsite, Spherulitic'
Stratigraphy Not entered
Comments WNW dyke; Memoir, p. 374
Locality details 600 yds SW of Killbeg
50k map sheet Mull (44)

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Map reference NM 5978 4121
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


S14768

Cross Polarized, S14768

Plane Polarized, S14768

Plane Polarized, S14768