BGS mineralogy and petrology collection record

Sample number E25419; COLLNORH52;
Sample Donor Hoare,R.H.
Rock name 'Original entry: Mineralized Carbonate+Sphalerite Rock?'
Stratigraphy Not entered
Comments From Mineworkings (Trecastell Lead Mine) - 270' O.D. country rock, ca 2ft. from Hanging Wall of No.3 Lode (5th Level, 85 fathoms)
Locality details 970 yds. W of the Chapel, Henrhyo; 390 yds. NW of Gwenddar Mill
50k map sheet Bangor (106)

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Map reference SH 763 745
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


E25419

Cross Polarized, E25419

Plane Polarized, E25419

Plane Polarized, E25419