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Nepheline from
Wolf Rock, Cornwall, England, UK


Locality type:Island
Classification
Species:Nepheline
Formula:Na3K(Al4Si4O16)
Age information
Maximum recorded age:130 ± 4 Ma
Minimum recorded age:129 ± 5 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
1130 ± 4 to 129 ± 5 MaEarly/Lower Cretaceous - K-Ar
Sample references:
1 -
Harrison, R. K., Snelling, N. J., Merriman, R. J., Morgan, G. E., Goode, A. J. J. (1977) The Wolf Rock, Cornwall: new chemical, isotopic age and palaeomagnetic data. Geological Magazine, 114 (4) 249-264 doi:10.1017/s0016756800045052
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Nosean1
Sanidine1
Aegirine1
Data
Mineral Data:Click here to view Nepheline data
Locality Data:Click here to view Wolf Rock, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:8053
Long-form Identifier:1:3:8053:8
GUID (UUID V4):0
Nearest other occurrences of Nepheline
12.5km (7.8 miles) ⓘEpson Shoal occurrence, England, UK
References
doi.org/10.1017/S0016756800045581
doi.org/10.1017/S0016756800067182
Harrison, R. K., Snelling, N. J., Merriman, R. J., Morgan, G. E., Goode, A. J. J. (1977) The Wolf Rock, Cornwall: new chemical, isotopic age and palaeomagnetic data. Geological Magazine, 114 (4) 249-264 doi:10.1017/s0016756800045052
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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