BGS mineralogy and petrology collection record

Sample number S30203
Sample Donor Simpson,J.B.
Rock name 'Original entry: Hornblende Or Biotite Andesite (Ac1)'
Stratigraphy Not entered
Comments Hornblende or biotite andesite (Ac1), Lava flow (cf. 30605)
Locality details 1000 yards NW of Glenmucklock Crichtons
50k map sheet Sanquhar (15)

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Map reference NS 686 145
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


S30203

Cross Polarized, S30203

Plane Polarized, S30203

Plane Polarized, S30203