BGS mineralogy and petrology collection record

Sample number S30161
Sample Donor Simpson,J.B.
Rock name 'Original entry: Porphyrite'
Stratigraphy Not entered
Comments Dyke, porphyrite
Locality details Shore 400 yds SSE of Doirlinn
50k map sheet Tobermory (52)

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Map reference NM 6092 5820
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


S30161

Cross Polarized, S30161

Plane Polarized, S30161

Plane Polarized, S30161