BGS mineralogy and petrology collection record

Sample number S22684
Sample Donor Richey, James E.
Rock name 'Original entry: Dolerite, ?Baked'
Stratigraphy Not entered
Comments ?Baked dolerite close to Great Eucrite; memoir, p. 320
Locality details 500 yds N 35 deg W of summit of Meall nanTarmachain
50k map sheet Tobermory (52)

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Map reference NM 4901 6668
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


S22684

Cross Polarized, S22684

Plane Polarized, S22684

Plane Polarized, S22684