BGS mineralogy and petrology collection record

Sample number S18042
Sample Donor Wilson, J.S.G.
Rock name 'Original entry: Tachylyte'
Stratigraphy Not entered
Comments 4 ft tachylyte sheet; as base of Bill Sill
Locality details 1400 ft SSW of summit of Creach Beinn
50k map sheet Mull (44)

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Map reference NM 6389 2901
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


S18042

Cross Polarized, S18042

Plane Polarized, S18042

Plane Polarized, S18042