| Locality type: | Quarry |
| Classification |
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| Species: | 'Pumpellyite Group' (not an IMA approved species) |
| Formula: | Ca2XZ2[Si2O6(OH)][SiO4](OH)2A |
| Formation: | Secondary |
| Comments: | Few specimens have been confirmed by analyses to differentiate it from several other possible pumpellyite group minerals. |
| Habit: | microfibrous botryoids, crusts, bowties |
| Colour: | blue-green, dark olive green to black |
| Quality for species: | Good crystals or rich for species - important (!) |
| Abundance at site: | Very common |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Associated Minerals Based on Photo Data: |
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| Calcite | ⓘ4 photos of Pumpellyite Group associated with Calcite at this locality. |
| Prehnite | ⓘ2 photos of Pumpellyite Group associated with Prehnite at this locality. |
| Quartz | ⓘ2 photos of Pumpellyite Group associated with Quartz at this locality. |
| Pyrite | ⓘ1 photo of Pumpellyite Group associated with Pyrite at this locality. |
| Stilbite Subgroup | ⓘ1 photo of Pumpellyite Group associated with Stilbite Subgroup at this locality. |
| Hematite | ⓘ1 photo of Pumpellyite Group associated with Hematite at this locality. |
| Data |
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| Mineral Data: | Click here to view Pumpellyite Group data |
| Locality Data: | Click here to view Roncari Quarry, East Granby, Hartford County, Connecticut, USA |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1373143 |
| Long-form Identifier: | 1:3:1373143:8 |
| GUID (UUID V4): | 4db71dfe-6125-474e-a0b9-851fc88ceecc |
| Nearest other occurrences of Pumpellyite Group |
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| 44.2km (27.4 miles) | ⓘInterstate 691 and State Route 10 Interchange, Cheshire, New Haven County, Connecticut, USA |
| 58.0km (36.1 miles) | ⓘO & G Woodbury Traprock Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA |
| 61.5km (38.2 miles) | ⓘO & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | CONNECTICUT Mineral Locality Index Although many sites in Connecticut are no longer open to collectors...H. WEBER 1172 West L a k e Avenue Guilford, Connecticut 06437-1342 E A R L E C. SULLIVAN 17 R o c k y...y R i d g e D r i v e T r u m b u l l , Connecticut 06611-5326 T his locality index is meant to serve...collectors. More often than not, collecting in Connecticut is no longer per mitted. Many of the localities...effort has been made to list a l l localities in Connecticut, a small state that is big on mineralization |  | | Book | | MineralogicalRecord.com I IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning...beginning of the 20th century, the Trimouns quarry became well known to collectors around 1990 for the...long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...5 cm (Grice and Gault, 1981). CONNECTICUT Litchfield, Litchfield County. Ilmenite masses and crystals |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Yale University. Eugene Alexandrov: Hamden, Connecticut. Eric Asselborn, M.D.: Montrevel-en-Bresse, Ain...and Geophysics, Yale University, New Haven, Connecticut. James A. Ferraiolo: Bowie, Maryland. Michael...Geology Library, Yale University, New Haven, Connecticut. Luiz A. D. Menezes: Belo Horizonte, Minas Gerais...Sheldon Thompson: R. T. Vanderbilt Co., Norwalk, Connecticut. Kenneth M. Towe: Dept. of Paleobiology, Smithsonian...Species containing more than one anion or anion group may be assigned to a separate class or may be assigned |
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Roncari Quarry, East Granby, Hartford County, Connecticut, USA