BGS mineralogy and petrology collection record

Sample number E15931
Sample Donor Thomas, Dr.
Rock name 'Original entry: Slate'
Stratigraphy Not entered
Comments Maen Offeareu slate, crushed through 1"sieve and retained on 1/4" after firing in Rotary Kiln
Locality details Maen Offeareu, Portmadoc
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

Map reference Not entered
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


E15931

Cross Polarized, E15931

Plane Polarized, E15931

Plane Polarized, E15931