BGS mineralogy and petrology collection record

Sample number S22056; S22056/A; S22056/B;
Sample Donor Phemister,J.
Rock name 'Original entry: Riebeckite-Pulaskite'
Stratigraphy Not entered
Comments Coarse hornblendic type; see Summ Prog for 1924, p. 117
Locality details Above scree, middle of E face of the Black Rock (Creag na Fearna), 37 deg N of W of junction of R Oykell and Allt Sail an Ruathair
50k map sheet Lairg (102)

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Map reference NC 31973 13527
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


S22056

Cross Polarized, S22056

Plane Polarized, S22056

Plane Polarized, S22056


S22056/A

Cross Polarized, S22056/A

Plane Polarized, S22056/A

Plane Polarized, S22056/A


S22056/B

Cross Polarized, S22056/B

Plane Polarized, S22056/B

Plane Polarized, S22056/B