Locality type: | Quarry |
Classification |
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Species: | Pyrolusite |
Formula: | Mn4+O2 |
Comments: | No pyrolusite dendrite or staining in a granite pegmatite in the world has been verified as pyrolusite. The name was a mistake in the nineteenth century which has been widely publicized. |
Confirmation |
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Validity: | Erroneously Reported |
Data |
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Mineral Data: | Click here to view Pyrolusite data |
Locality Data: | Click here to view Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 131864 |
Long-form Identifier: | 1:3:131864:7 |
GUID (UUID V4): | aa00d0a8-773b-415d-9d77-f02f1ebe6829 |
Nearest other occurrences of Pyrolusite |
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0.3km (0.2 miles) | ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA |
0.9km (0.6 miles) | ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
1.0km (0.6 miles) | ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
1.4km (0.9 miles) | ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA |
1.7km (1.0 miles) | ⓘHusband Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
1.8km (1.1 miles) | ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA |
4.1km (2.5 miles) | ⓘSouth Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
4.4km (2.7 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
7.2km (4.5 miles) | ⓘGreat Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA |
7.5km (4.6 miles) | ⓘState Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA |
References |
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