BGS mineralogy and petrology collection record

Sample number E17653; COLLNOMI26435;
Sample Donor Hallimond,Doctor
Rock name 'Original entry: Biotite Granite With Quartz, Fluorite, Tourmaline Vein'
Stratigraphy Not entered
Comments Tourmaline, quartz and feldspar in granite.
Locality details South Crofty Mine.
50k map sheet Falmouth (352)

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Map reference
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


E17653

Cross Polarized, E17653

Plane Polarized, E17653

Plane Polarized, E17653