BGS mineralogy and petrology collection record

Sample number S23848
Sample Donor Read, H.H.
Rock name 'Original entry: Acid Porphyry'
Stratigraphy Not entered
Comments Acid porphyry, pebbles in greywacke conglomerate
Locality details Small exposure on hillside above clump of trees, 410 yards N 14 deg E of Tintoside
50k map sheet Hamilton (23)

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Map reference NS 9730 3424
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


S23848

Cross Polarized, S23848

Plane Polarized, S23848

Plane Polarized, S23848