BGS mineralogy and petrology collection record

Sample number S45064
Sample Donor Haldane,D.; Phemister,J.;
Rock name 'Original entry: Tonalite, Hybrid Or Contaminated?'
Stratigraphy Not entered
Comments Hybrid = granitised epidiorite
Locality details The Houllands, 320 yds SSE of Sparl Croft
50k map sheet Central Shetland (128)

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Map reference HU 364 661
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


S45064

Cross Polarized, S45064

Plane Polarized, S45064

Plane Polarized, S45064