BGS mineralogy and petrology collection record

Sample number E24166; COLLNO17;
Sample Donor Eyles,V.A.
Rock name Tuff. 'Original entry: Crystal Vitric Tuff'
Stratigraphy Not entered
Comments Grey slatey rock? W ash fragments
Locality details No.7 Borehole, Llanwyryst. 330 yds. S13W of Old Shafts, New Pandora Lead Mine
50k map sheet Bangor (106)

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View a geological map near 'Bangor'

Map reference SH 767 601
Year collected Not entered 
Bore name Llanwyrst No.7
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


Cross Polarized, E24166

Plane Polarized, E24166

Plane Polarized, E24166