BGS mineralogy and petrology collection record

Sample number S20272
Sample Donor Refer to paper records
Rock name 'Original entry: Sillimanite Buchite'
Stratigraphy Not entered
Comments Sapphire-bearing; Memoir, p. 273
Locality details Lag an t-Seilich
50k map sheet Mull (44)

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Map reference NM 495 241
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


S20272

Cross Polarized, S20272

Plane Polarized, S20272

Plane Polarized, S20272