BGS mineralogy and petrology collection record

Sample number S18982
Sample Donor Macconachie,A.
Rock name 'Original entry: Hypersthene Norite'
Stratigraphy Not entered
Comments Strongly pleochroic hornblende, biotite, labradorite-bytownite
Locality details North end of Ben Hough, Tiree
50k map sheet Tiree (42)

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Map reference NL 946 465
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


S18982

Cross Polarized, S18982

Plane Polarized, S18982

Plane Polarized, S18982