Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Uraninite from
Coronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK


Locality type:Lode
Classification
Species:Uraninite
Formula:UO2
Age information
Maximum recorded age:290 ± 7 Ma
Minimum recorded age:223 ± 5 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
1290 ± 7 MaCisuralianMine ore 1957Pb/U
2223 ± 5 MaLate/Upper TriassicMine ore 1961Pb/U
Sample references:
1Mine ore 1957
Darnley, A. G., English, T. H., Sprake, O., Preece, E. R., Avery, D. (1965) Ages of uraninite and Coffinite from south-west England. Mineralogical Magazine and Journal of the Mineralogical Society, 34 (268). 159-176 doi:10.1180/minmag.1965.034.268.13
2Mine ore 1961
Darnley, A. G., English, T. H., Sprake, O., Preece, E. R., Avery, D. (1965) Ages of uraninite and Coffinite from south-west England. Mineralogical Magazine and Journal of the Mineralogical Society, 34 (268). 159-176 doi:10.1180/minmag.1965.034.268.13
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Uraninite data
Locality Data:Click here to view Coronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:1095102
Long-form Identifier:1:3:1095102:2
GUID (UUID V4):0
Nearest other occurrences of Uraninite
0.0km (0.0 miles) ⓘGeevor Mine, Pendeen, St Just, Cornwall, England, UK
1.6km (1.0 miles) ⓘBotallack Mine, Botallack, St Just, Cornwall, England, UK
2.1km (1.3 miles) ⓘLoe Warren Zawn, Botallack, St Just, Cornwall, England, UK
2.2km (1.3 miles) ⓘWheal Edward, Botallack, St Just, Cornwall, England, UK
2.2km (1.4 miles) ⓘWheal Owles, Botallack, St Just, Cornwall, England, UK
10.8km (6.7 miles) ⓘWherry Mine, Wherrytown, Penzance, Cornwall, England, UK
14.7km (9.2 miles) ⓘWheal Trenwith, St Ives, Cornwall, England, UK
14.9km (9.2 miles) ⓘWheal Bahavella (Wheal Bravella), St Ives, Cornwall, England, UK
21.6km (13.4 miles) ⓘWheal Herland (Old Herland Mine; Manor Mine; North Wheal Herland), Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Gwinear, Gwinear-Gwithian, Cornwall, England, UK
23.8km (14.8 miles) ⓘWheal Trewavas (Trewavas Cliff Mine), Rinsey, Breage, Cornwall, England, UK
References
Darnley, A. G., English, T. H., Sprake, O., Preece, E. R., Avery, D. (1965) Ages of uraninite and Coffinite from south-west England. Mineralogical Magazine and Journal of the Mineralogical Society, 34 (268). 159-176 doi:10.1180/minmag.1965.034.268.13
 
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