BGS mineralogy and petrology collection record

Sample number E18092; COLLNOM209;
Sample Donor Matley, C.A
Rock name 'Original entry: Grit With Slate Matrix'
Stratigraphy Not entered
Comments 2 ft of flaggy grits in slates
Locality details 450 yds NW of Cefn Cam House
50k map sheet Harlech (135)

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Map reference
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


E18092

Cross Polarized, E18092

Plane Polarized, E18092

Plane Polarized, E18092