| Locality type: | Mine |
| Classification |
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| Species: | Beryl var: Heliodor |
| Formula: | Be3Al2(Si6O18) |
| Comments: | Remarkable etching on yellow crystals. |
| Colour: | Yellow |
| Confirmation |
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| Validity: | Believed Valid |
| References |
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| References: | Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 52; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 103. |
| Data |
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| Mineral Data: | Click here to view Heliodor data |
| Locality Data: | Click here to view Surprise Mine, Ramona, Ramona Mining District, San Diego County, California, USA |
| Nearest other occurrences of Heliodor |
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| 17.7km (11.0 miles) | | ⓘHimalaya Mine (Himalaya dikes; Himalaya pegmatite), Gem Hill, Mesa Grande Mining District, San Diego County, California, USA |
| 18.6km (11.6 miles) | | ⓘEsmeralda Mine, Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA |
| 28.2km (17.5 miles) | | ⓘMack Mine (John Mac mine; Mac mine; San Luis Rey claim), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA |
| 31.2km (19.4 miles) | | ⓘMountain Lily Mine (Emeralite No. 2 claim; Gem Mine No. 1 claim; Ware mine), Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District (Smith Mountain Mining District), San Diego County, California, USA |
| 35.9km (22.3 miles) | | ⓘCarmelita Mine (Big Spring mine; Blue Gem claim; Crest Gem mine; Elinor deposit; Elinor mine; Estudillo mine; French Pete mine; MS 6130; Peter Cabat mine), Chihuahua Valley, Warner Springs Mining District, San Diego County, California, USA |
| 44.5km (27.7 miles) | | ⓘStewart Mine (MS 6162; Stewart Lithia mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USA |
| 45.8km (28.4 miles) | | ⓘTourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USA |