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


Locality type:Mine
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Balnoon Mine (Vorvas Downs Mine; Warvas Downs Mine), Trewartha, St Ives, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:541419
Long-form Identifier:1:3:541419:2
GUID (UUID V4):f3aa0c17-9c0a-4ba3-8ba9-254a90cf5b20
Nearest other occurrences of Schorl
0.6km (0.4 miles) ⓘKnill Quarry, St Ives, Cornwall, England, UK
1.2km (0.7 miles) ⓘSouth Wheal Providence (South Wheal Speed), Carbis Bay, St Ives, Cornwall, England, UK
1.3km (0.8 miles) ⓘWheal Speed, Providence Mines, Carbis Bay, St Ives, Cornwall, England, UK
1.5km (0.9 miles) ⓘGiew Mine (Giew Consols), Cripplesease, Towednack, 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
2.1km (1.3 miles) ⓘTrencrom Hill, Trencrom, Ludgvan, Cornwall, England, UK
2.5km (1.6 miles) ⓘLelant Consols, Trencrom, Ludgvan, Cornwall, England, UK
References
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford, London.
Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro.
 
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