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Feldspar Group from
Balnoon Mine (Vorvas Downs Mine; Warvas Downs Mine), Trewartha, St Ives, Cornwall, England, UK

Locality type:Mine
Classification
Species:'Feldspar Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
References
References:Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Data
Mineral Data:Click here to view Feldspar Group data
Locality Data:Click here to view Balnoon Mine (Vorvas Downs Mine; Warvas Downs Mine), Trewartha, St Ives, Cornwall, England, UK
Nearest other occurrences of Feldspar Group
1.3km (0.8 miles) Wheal Speed, Providence Mines, Carbis Bay, St Ives, Cornwall, England, UK
1.5km (0.9 miles) Wheal Reeth, Trencrom, Ludgvan, Cornwall, England, UK
1.7km (1.0 miles) St Ives Consols (incl. Wellesley Mine; Wheal Mary), St Ives, Cornwall, England, UK
1.8km (1.1 miles) Wheal Mary, Wheal Sisters, Trencrom, Ludgvan, Cornwall, England, UK
2.1km (1.3 miles) Wheal Union (Wheal Wens; Wheal Winze), Towednack, Cornwall, England, UK
2.5km (1.6 miles) Lelant Consols, Trencrom, Ludgvan, Cornwall, England, UK
6.4km (4.0 miles) East Ding Dong Mine (Mulfra Hill Mine), Mulfra, Madron, Cornwall, England, UK
6.5km (4.0 miles) Wheal Darlington (Bog Mine; incl. East Wheal Darlington), Marazion Marsh, Ludgvan, Cornwall, England, UK
7.2km (4.5 miles) Penberthy Croft Mine, St Hilary, Cornwall, England, UK
8.0km (5.0 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
 
Mineral and/or Locality  
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