BGS mineralogy and petrology collection record

Sample number S15765
Sample Donor Richey, James E.
Rock name 'Original entry: Oligoclase Trachyte'
Stratigraphy Not entered
Comments Multiple NW dyke: 9 inch thick inner part of acid component; Mull memoir, p. 375
Locality details Speinne Beag
50k map sheet Tobermory (52)

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Map reference NM 5138 4799
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


S15765

Cross Polarized, S15765

Plane Polarized, S15765

Plane Polarized, S15765