BGS mineralogy and petrology collection record

Sample number S4191
Sample Donor Clough, C.T.
Rock name 'Original entry: Mica, Hornblende, Feldspar'
Stratigraphy Not entered
Comments Feldspar, pale green hornblende and pale brown mica
Locality details 150 yds SW of top of An Groban
50k map sheet Gairloch (91)

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Map reference NG 836 749
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


S4191

Cross Polarized, S4191

Plane Polarized, S4191

Plane Polarized, S4191