BGS mineralogy and petrology collection record

Sample number RC1121/6
Sample Donor Not entered
Rock name Pegmatite. 'Original entry: Genthelvite, Helvite, Danalite'
Stratigraphy Not entered
Comments Weathered pegmatite with genthelvite, (Zn, Fe, Mn)8 be6Si6O24S2. Theoretical genthelvite composition: helvite 2-18%, danalite 11-21%, genthelvite 71-85%. (Vlasov Mineralogy of Rare Elements Vol. II, 1966). UG 8199.
Locality details Genthelvite in pegmatite associted with amazooite, Harwell Paddock, Rayfield, Jos Plateau, Nigeria.
50k map sheet Not entered
Map reference Not entered
Year collected
Bore name Not applicable
Confidentiality No restrictions