BGS mineralogy and petrology collection record

Sample number S9988
Sample Donor Clough, C.T.
Rock name 'Original entry: Andesitic Pitchstone'
Stratigraphy Not entered
Comments Glassy portion of thin dyke, Sp. Gr. 2.50
Locality details 266 yds WNW of S end of An Dubh Sgeire
50k map sheet Minginish (70)

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Map reference NG 465 141
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


S9988

Cross Polarized, S9988

Plane Polarized, S9988

Plane Polarized, S9988