BGS mineralogy and petrology collection record

Sample number S17861
Sample Donor Clough, C.T.
Rock name 'Original entry: Baked Porphyritic Augite Andesite'
Stratigraphy Not entered
Comments Lava; much biotite developed, secondary hornblende
Locality details 130 yds ENE of Creag na h-Iolaire
50k map sheet Mull (44)

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Map reference NM 6119 2915
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


S17861

Cross Polarized, S17861

Plane Polarized, S17861

Plane Polarized, S17861