Locality type: | Prospect |
Classification |
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Species: | Beryl var: Heliodor |
Formula: | Be3Al2(Si6O18) |
Comments: | Typically in radiating groups with tiny columbites. Good gem crystals rare. |
Colour: | yellow to orange-brown |
Quality for species: | Good crystals or rich for species - important (!) |
Abundance at site: | Common |
Confirmation |
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Validity: | Believed Valid |
Associated Minerals Based on Photo Data: |
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Columbite-(Fe)-Columbite-(Mn) Series | 1 photo of Heliodor associated with Columbite-(Fe)-Columbite-(Mn) Series at this locality. |
Data |
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Mineral Data: | Click here to view Heliodor data |
Locality Data: | Click here to view Civilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex County, Connecticut, USA |
Photo Gallery | View Gallery (6 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 638511 |
Long-form Identifier: | 1:3:638511:8 |
GUID (UUID V4): | d02effd3-89c1-4ff2-afa5-b62f24953932 |
Nearest other occurrences of Heliodor |
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0.6km (0.4 miles) | ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA |
6.6km (4.1 miles) | ⓘAnderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA |
9.1km (5.6 miles) | ⓘSlocum prospect, East Hampton (Chatham), Middlesex County, Connecticut, USA |
12.3km (7.6 miles) | ⓘBecker Quarry, East Hampton (Chatham), Middlesex County, Connecticut, USA |
16.3km (10.1 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
16.4km (10.2 miles) | ⓘSchoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
19.2km (11.9 miles) | ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA |
19.4km (12.1 miles) | ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA |
21.3km (13.2 miles) | ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
79.7km (49.5 miles) | ⓘNew England Mining Company Quarry (Roebling Mine; Hewitt's Mine), Upper Merryall, New Milford, Litchfield County, Connecticut, USA |
References |
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Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA