BGS mineralogy and petrology collection record

Sample number S7722
Sample Donor Symes, Richard G
Rock name 'Original entry: Rhyolitic Andesite'
Stratigraphy Not entered
Comments Nodule from tuff; see Memoir, p. 79
Locality details NE of Achnaba Church
50k map sheet Oban (45)

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Map reference NM 948 360
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


S7722

Cross Polarized, S7722

Plane Polarized, S7722

Plane Polarized, S7722