BGS mineralogy and petrology collection record

Sample number S15753; S15753/A; S15753/B;
Sample Donor Richey, James E.
Rock name 'Original entry: Phonolitic Biotite Trachyte'
Stratigraphy Not entered
Comments Tertiary; plug in the Ardcross vent; Mull Mem, p. 192
Locality details Shore 0.25 mile W of Rubha an t-Sean Chaisteil
50k map sheet Tobermory (52)

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Map reference NM 5475 5022
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


S15753/A

Cross Polarized, S15753/A

Plane Polarized, S15753/A

Plane Polarized, S15753/A


S15753/B

Cross Polarized, S15753/B

Plane Polarized, S15753/B

Plane Polarized, S15753/B