| Locality type: | Mine |
| Classification |
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| Species: | 'Columbite-Tantalite' (not an IMA approved species) |
| Comments: | Occurs only in pocket pegmatite (open cavities or 'frozen' cavities). |
| Abundance at site: | Very Rare |
| Confirmation |
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|
| Validity: | Believed Valid |
| References |
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| References: | Foord, Eugene E. et al (1989), Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. Mineralogical Record, 20(2): p. 106. |
| Data |
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| Mineral Data: | Click here to view Columbite-Tantalite data |
| Locality Data: | Click here to view Hercules Mine (Beryl claim; Hercules claim; Hercules group; Hercules prospect), Ramona, Ramona Mining District, San Diego County, California, USA |
| Nearest other occurrences of Columbite-Tantalite |
|---|
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|
| 17.1km (10.6 miles) | | ⓘHimalaya Mine (Himalaya dikes; Himalaya pegmatite), Gem Hill, Mesa Grande Mining District, San Diego County, California, USA |
| 26.7km (16.6 miles) | | ⓘVictor Mine (Big Buck mine; Big Buck prospect), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA |
| 45.1km (28.0 miles) | | ⓘTourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USA |