| Classification |
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| Species: | Quartz var: Rock Crystal |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Unconfirmed/Questioned |
| Data |
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| Mineral Data: | Click here to view Rock Crystal data |
| Locality Data: | Click here to view Humphreys Ledge quartz crystal locality, Bartlett, Carroll County, New Hampshire, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 51222 |
| Long-form Identifier: | 1:3:51222:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Rock Crystal |
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| 24.8km (15.4 miles) | ⓘFoster Hill prospect, Lovell, Oxford County, Maine, USA |
| 32.2km (20.0 miles) | ⓘBurnell Hill Feldspar Quarries, Waterford, Oxford County, Maine, USA |
| 47.5km (29.5 miles) | ⓘNoyes Mountain Quarry (Harvard Quarry), Greenwood, Oxford County, Maine, USA |
| 47.9km (29.7 miles) | ⓘDiamond Ledge Locality, Greenwood, Oxford County, Maine, USA |
| 60.5km (37.6 miles) | ⓘBlack Mountain, Benton, Grafton County, New Hampshire, USA |
| 61.9km (38.5 miles) | ⓘMount Tom Spar Quarry, Sumner, Oxford County, Maine, USA |
| 68.7km (42.7 miles) | ⓘPhillips Quarry, Minot, Androscoggin County, Maine, USA |
| 68.9km (42.8 miles) | ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA |
| 69.8km (43.3 miles) | ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA |
| 90.2km (56.1 miles) | ⓘPound of Tea Island Epidote locality, Freeport, Cumberland County, Maine, USA |
| References |
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