Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Schorl from
Trencrom Hill, Trencrom, Ludgvan, Cornwall, England, UK


Locality type:Hill
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 Trencrom Hill, Trencrom, Ludgvan, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:1234405
Long-form Identifier:1:3:1234405:9
GUID (UUID V4):0
Nearest other occurrences of Schorl
1.0km (0.6 miles) ⓘWheal Mary, Wheal Sisters, Trencrom, Ludgvan, Cornwall, England, UK
1.4km (0.8 miles) ⓘLelant Consols, Trencrom, Ludgvan, Cornwall, England, UK
1.5km (0.9 miles) ⓘWheal Reeth, Trencrom, Ludgvan, Cornwall, England, UK
1.6km (1.0 miles) ⓘSouth Wheal Providence (South Wheal Speed), Carbis Bay, St Ives, Cornwall, England, UK
1.9km (1.1 miles) ⓘWheal Speed, Providence Mines, Carbis Bay, St Ives, Cornwall, England, UK
2.0km (1.2 miles) ⓘGiew Mine (Giew Consols), Cripplesease, Towednack, Cornwall, England, UK
2.1km (1.3 miles) ⓘBalnoon Mine (Vorvas Downs Mine; Warvas Downs Mine), Trewartha, St Ives, Cornwall, England, UK
2.5km (1.6 miles) ⓘKnill Quarry, St Ives, Cornwall, England, UK
3.4km (2.1 miles) ⓘBedlam Green China Clay Works, Higher Trenowin, Ludgvan, Cornwall, England, UK
3.5km (2.2 miles) ⓘCastle-an-Dinas Quarry, Higher Trenowin, Ludgvan, Cornwall, England, UK
References
Wilson, A. C. (1975) An occurrence of sapphire in the Land's End Granite, Cornwall. Bulletin of the Geological Survey of Great Britain 52, Geological Survey of Great Britain. 61-64
 
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