BGS mineralogy and petrology collection record

Sample number S15640
Sample Donor Clough, C.T.
Rock name 'Original entry: Porphyritic Basalt'
Stratigraphy Not entered
Comments Inclined sheet; sp. gr. 2.81
Locality details 1900 ft SSW of Craig
50k map sheet Mull (44)

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Map reference NM 5811 2915
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


S15640

Cross Polarized, S15640

Plane Polarized, S15640

Plane Polarized, S15640