BGS mineralogy and petrology collection record

Sample number S18677
Sample Donor Bailey, E.B.
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments 1 ft layer on compact lavas at base of protrusions of main mass of small-feldspar felsite
Locality details Doire a' Mhaim, 6300 ft W of Torness
50k map sheet Mull (44)

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Map reference NM 6300 3277
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


S18677

Cross Polarized, S18677

Plane Polarized, S18677

Plane Polarized, S18677