| Locality type: | Quarry |
| Classification |
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| Species: | Topaz |
| Formula: | Al2(SiO4)(F,OH)2 |
| Comments: | In Januzzi (1994) he mentions topaz "reported as a single occurrence; additional information is needed concerning the authenticity of the find". In a specimen formerly in his collection are a few glassy, colorless, complexly terminated microcrystals identified as topaz, found in voids a very fine-grained cleavelandite matrix partly filled with calcite. But when examined under SW UV light, they fluoresce the typical bright yellow-white of fluorapatite. They also do not show the perfect basal cleavage of topaz. |
| Habit: | short prismatic |
| Colour: | colorless |
| Luminescent properties: | bright yellow-white under SW and MW UV |
| Confirmation |
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| Validity: | Erroneously Reported |
| Data |
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| Mineral Data: | Click here to view Topaz data |
| Locality Data: | Click here to view Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1219792 |
| Long-form Identifier: | 1:3:1219792:9 |
| GUID (UUID V4): | 48590552-db83-4592-a4f2-d578457943f2 |
| Nearest other occurrences of Topaz |
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| 5.2km (3.2 miles) | ⓘRidgefield, Fairfield County, Connecticut, USA |
| 17.2km (10.7 miles) | ⓘState Route 111 road cuts, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 17.6km (10.9 miles) | ⓘOld Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 17.9km (11.1 miles) | ⓘOld Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 18.1km (11.2 miles) | ⓘCorporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 18.1km (11.3 miles) | ⓘCorporate Drive road cut, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 18.6km (11.6 miles) | ⓘPoquonock River outcrops, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 19.2km (11.9 miles) | ⓘPorter Hill Road roadcut, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| 20.6km (12.8 miles) | ⓘMonroe, Fairfield County, Connecticut, USA |
| 72.6km (45.1 miles) | ⓘ164th Street & Broadway, Manhattan (New York County), New York City, New York, USA |
| References |
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