BGS mineralogy and petrology collection record

Sample number S55291; COLLNOYC1940;
Sample Donor Mykura,W.
Rock name 'Original entry: Hardened Laminated Siltstone'
Stratigraphy Not entered
Comments Hard dark grey strongly-cleaved and indurated shale
Locality details Heukni Geo, S end, just N of projecting headland
50k map sheet Fair Isle (123)

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Map reference HZ 203 711
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


S55291

Cross Polarized, S55291

Plane Polarized, S55291

Plane Polarized, S55291