BGS mineralogy and petrology collection record

Sample number S22238
Sample Donor Richey, James E.
Rock name 'Original entry: Lava Cut By Cone Sheet'
Stratigraphy Not entered
Comments Basalt lava cut by 2-inch porphyrite cone sheet; Memoir, p. 237
Locality details 260 yds N 40 deg W of Kilchoan Free Church
50k map sheet Coll (51)

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Map reference NM 4788 6444
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


S22238

Cross Polarized, S22238

Plane Polarized, S22238

Plane Polarized, S22238