BGS mineralogy and petrology collection record

Sample number S21845; S21845/A; S21845/B;
Sample Donor Richey, James E.
Rock name 'Original entry: ?Sedimentary Rock'
Stratigraphy Not entered
Comments 3 Sedimentary bed shale (Upper Lias), above and below; Memoir, p. 195
Locality details 600 yds E by N of summit of Maol Buidhe
50k map sheet Coll (51)

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View the geology near 'Coll'

Map reference NM 4693 6258
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


S21845

Cross Polarized, S21845

Plane Polarized, S21845

Plane Polarized, S21845


S21845/A

Cross Polarized, S21845/A

Plane Polarized, S21845/A

Plane Polarized, S21845/A


S21845/B

Cross Polarized, S21845/B

Plane Polarized, S21845/B

Plane Polarized, S21845/B