| Locality type: | Quarry |
| Classification |
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| Species: | Beryl |
| Formula: | Be3Al2(Si6O18) |
| Comments: | According to Cameron et al (1954), beryl is concentrated in the quartz-perthitic microcline zone in the the southwest half of no. 1 quarry as pale greenish-white, short, subhedral prisms, 3 inches in average length and 2 inches in average diameter. A 300-pound block of quartz and plagioclase found in the backfill contains at least 8 percent beryl. Also an accessory of the pegmatites in the no. 2 quarry. Sterrett (1923) reports “many crystals of beryl, some of them more than a foot in diameter”. Crystals are usually sheathed in mica and are poorly formed but internally contain some of the best gem beryl rough found in Connecticut. |
| Habit: | anhedral elongated prisms |
| Colour: | pale green, yellow to honey, blue |
| Quality for species: | Good crystals or rich for species - important (!) |
| Abundance at site: | Common |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Muscovite | ⓘ21 photos of Beryl associated with Muscovite at this locality. |
| Quartz | ⓘ18 photos of Beryl associated with Quartz at this locality. |
| Albite | ⓘ10 photos of Beryl associated with Albite at this locality. |
| Data |
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| Mineral Data: | Click here to view Beryl data |
| Locality Data: | Click here to view New England Mining Company Quarry (Roebling Mine; Hewitt's Mine), Upper Merryall, New Milford, Litchfield County, Connecticut, USA |
| Photo Gallery | View Gallery (29 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 131623 |
| Long-form Identifier: | 1:3:131623:0 |
| GUID (UUID V4): | bba6e2dc-f3b8-4542-844c-aea64e3722ca |
| Nearest other occurrences of Beryl |
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| 19.4km (12.1 miles) | ⓘBrookfield, Fairfield County, Connecticut, USA |
| 21.0km (13.1 miles) | ⓘWoodbury pegmatite quarry (Judson Quarry), Woodbury, Litchfield County, Connecticut, USA |
| 22.8km (14.2 miles) | ⓘLitchfield, Litchfield County, Connecticut, USA |
| 23.0km (14.3 miles) | ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA |
| 23.5km (14.6 miles) | ⓘGreen Mountain Quarry, West Cornwall, Cornwall, Litchfield County, Connecticut, USA |
| 24.0km (14.9 miles) | ⓘMorris Dam Quarry (East Morris Dam), Morris, Litchfield County, Connecticut, USA |
| 25.3km (15.7 miles) | ⓘDanbury beryl prospect, Brookfield, Fairfield County, Connecticut, USA |
| 26.4km (16.4 miles) | ⓘSouthbury, New Haven County, Connecticut, USA |
| 28.8km (17.9 miles) | ⓘState Routes 8 and 118 interchange, Harwinton, Litchfield County, Connecticut, USA |
| 30.8km (19.1 miles) | ⓘThomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA |
| References |
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New England Mining Company Quarry, Upper Merryall, New Milford, Litchfield County, Connecticut, USA