BGS mineralogy and petrology collection record

Sample number S24406
Sample Donor Richey, James E.
Rock name 'Original entry: Feldspar-Macroporphyritic Basic Igneous Rock, Profusely Cut By Cone-Sheets'
Stratigraphy Not entered
Comments Big-feldspar basic rock, trend N 30 deg W, profusely cut by cone-sheets; Memoir, p. 352
Locality details 1500 yds E 10 deg N of Rudha Groulin
50k map sheet Coll (51)

View images in GeoScenic related to 'Coll'

View the geology near 'Coll'

Map reference NM 4750 7107
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


S24406

Cross Polarized, S24406

Plane Polarized, S24406

Plane Polarized, S24406