BGS mineralogy and petrology collection record

Sample number S13547; S13547/A; S13547/B;
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Markedly Cleaved Lamprophyre'
Stratigraphy Not entered
Comments Very rotten; 2 slides, a & b
Locality details N point of Colonsay
50k map sheet Colonsay (35)

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Map reference NM 4216 0110
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


S13547/A

Cross Polarized, S13547/A

Plane Polarized, S13547/A

Plane Polarized, S13547/A


S13547/B

Cross Polarized, S13547/B

Plane Polarized, S13547/B

Plane Polarized, S13547/B