BGS mineralogy and petrology collection record

Sample number E26277; COLLNO83;
Sample Donor Archer,A.A.
Rock name 'Original entry: Sheared Sandy Chloritic Shale'
Stratigraphy Not entered
Comments Not entered
Locality details BH No.4, 500 yds SE of Tyddyn-Mawr
50k map sheet Snowdon (119)

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Map reference SH 557 438
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


E26277

Cross Polarized, E26277

Plane Polarized, E26277

Plane Polarized, E26277