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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Tourmaline from
Clark Extension prospect, Ditch Mountain, Rincon, Rincon Mining District, San Diego County, California, USA


Locality type:Prospect
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Clark Extension prospect, Ditch Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
Data Identifiers
Mindat Occurrence Record ID:630819
Long-form Identifier:1:3:630819:3
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
0.6km (0.4 miles) ⓘClark Mine, Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
0.7km (0.5 miles) ⓘVictor Mine (Big Buck mine; Big Buck prospect), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
1.6km (1.0 miles) ⓘMack Mine (John Mac mine; Mac mine; San Luis Rey claim), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
11.5km (7.2 miles) ⓘEsmeralda Mine, Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA
11.7km (7.3 miles) ⓘTrail Mine, Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA
12.4km (7.7 miles) ⓘRose Quartz Mine (Patton lode; Patten lode; Powers group; Crystal Quartz; White Quartz; Sante Fe Gem), Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA
13.0km (8.1 miles) ⓘPayne Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
13.1km (8.1 miles) ⓘGreen Ledge Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
13.4km (8.3 miles) ⓘCota Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
13.6km (8.4 miles) ⓘPala Mountain, Pala, Pala Mining District, San Diego County, California, USA
References
Hanley, J. B. 1951. Economic Geology of the Rincon Pegmatites, San Diego County, California. Department of Natural Resources, California Division of Mines, Special Report 7B: p 23.
 
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