BGS mineralogy and petrology collection record

Sample number S17947
Sample Donor Richey, James E.
Rock name 'Original entry: Subacid Igneous Rock'
Stratigraphy Not entered
Comments Subacid ring dyke
Locality details 920 yds E 10 deg N of summit of Beinn a' Mheadhoin
50k map sheet Mull (44)

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Map reference NM 5945 3150
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


S17947

Cross Polarized, S17947

Plane Polarized, S17947

Plane Polarized, S17947