BGS mineralogy and petrology collection record

Sample number S30220
Sample Donor Phemister,J.
Rock name 'Original entry: Calc-Chlorite-Biotite-Albite Porphyroblastic Schist'
Stratigraphy Not entered
Comments Calc-chlorite-biotite-albite porphyroblastic schist. Type of green schist (Green Beds group) (cut across foliation)
Locality details Coast 1400 ft due N of Norwick, Ollaberry
50k map sheet Yell (130)

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Map reference HU 366 818
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


S30220

Cross Polarized, S30220

Plane Polarized, S30220

Plane Polarized, S30220