BGS mineralogy and petrology collection record

Sample number S474; COLLNO1712;
Sample Donor Macconachie,A.F.
Rock name 'Original entry: Tuff Of Andesitic Or Basaltic Character'
Stratigraphy Not entered
Comments "Porphyrite", decomposed F
Locality details N side of NW corner of Loganlee Reservoir
50k map sheet Edinburgh (32)

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Map reference NT 1964 6259
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


S474

Cross Polarized, S474

Plane Polarized, S474

Plane Polarized, S474