BGS mineralogy and petrology collection record

Sample number S21854
Sample Donor Richey, James E.
Rock name 'Original entry: Quartz-Dolerite'
Stratigraphy Not entered
Comments Cone sheet, baked; Memoir, pp. 192, 288
Locality details 500 yds W 35 deg S of summit of Meall an Tarmachain
50k map sheet Tobermory (52)

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Map reference NM 4857 6608
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


S21854

Cross Polarized, S21854

Plane Polarized, S21854

Plane Polarized, S21854