| Locality type: | Mine |
| Classification |
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| Species: | Thomsonite-Ca |
| Formula: | NaCa2[Al5Si5O20] · 6H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Thomsonite-Ca data |
| Locality Data: | Click here to view French Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 10992 |
| Long-form Identifier: | 1:3:10992:1 |
| GUID (UUID V4): | a9ff67b5-1ae7-479b-b2ec-d4b015729d00 |
| Nearest other occurrences of Thomsonite-Ca |
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| 11.1km (6.9 miles) | ⓘH&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA |
| 15.3km (9.5 miles) | ⓘDyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA |
| 41.2km (25.6 miles) | ⓘDeshong's Quarry, Leiperville, Ridley Township, Delaware County, Pennsylvania, USA |
| 58.7km (36.5 miles) | ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | DESCRIPTIVE MINERALOGY OF PENNSYLVANIA 104 Na 2Al 2 Si3 Oi .2H 2 O; SiO 2 47.4, A1 2 O 3 26.8, Na...Na 2 O 16.3, Lenni, Delaware County. Crystals. Eyerman, 1911, 11. Composition: Analysis: Fe 2 O3 CaO...Sp.gr LOCALITIES: Berks County: Birdsboro, and Gickerville; Delaware County: Leiperville, Lenni (druses...colorless crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...cut east of Reading (probably Birdsboro), Berks County. White, Smith, 1910, 540. silky mass of radiating |
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