BGS mineralogy and petrology collection record

Sample number S17969
Sample Donor Richey, James E.
Rock name 'Original entry: Felsite'
Stratigraphy Not entered
Comments Loch Ba dyke; Memoir, p. 346
Locality details 1250 yds S by W of Gortenbuie
50k map sheet Mull (44)

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Map reference NM 5921 3336
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


S17969

Cross Polarized, S17969

Plane Polarized, S17969

Plane Polarized, S17969