BGS mineralogy and petrology collection record

Sample number S54086
Sample Donor Mykura,W.
Rock name 'Original entry: Feldspar Porphyry (Grey)'
Stratigraphy Not entered
Comments Marginal facies of acid dyke; pale purplish-grey feldspar porphyry
Locality details SE side of Round Reeva
50k map sheet Fair Isle (123)

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Map reference HZ 201 709
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


S54086

Cross Polarized, S54086

Plane Polarized, S54086

Plane Polarized, S54086