| Locality type: | Quarry |
| Classification |
|---|
|
| Species: | Bertrandite |
| Formula: | Be4(Si2O7)(OH)2 |
| Comments: | Typically as secondary micro-crystals from alteration of beryl. |
| Habit: | complex micro-crystals |
| Colour: | colorless |
| Confirmation |
|---|
|
| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
|---|
|
| Albite | β18 photos of Bertrandite associated with Albite at this locality. |
| Adularia | β15 photos of Bertrandite associated with Adularia at this locality. |
| Elbaite | β10 photos of Bertrandite associated with Elbaite at this locality. |
| Microcline | β7 photos of Bertrandite associated with Microcline at this locality. |
| Quartz | β6 photos of Bertrandite associated with Quartz at this locality. |
| Calciomicrolite | β5 photos of Bertrandite associated with Calciomicrolite at this locality. |
| Cleavelandite | β3 photos of Bertrandite associated with Cleavelandite at this locality. |
| Chlorophane | β2 photos of Bertrandite associated with Chlorophane at this locality. |
| Metatorbernite | β1 photo of Bertrandite associated with Metatorbernite at this locality. |
| Fluorite | β1 photo of Bertrandite associated with Fluorite at this locality. |
| Data |
|---|
|
| Mineral Data: | Click here to view Bertrandite data |
| Locality Data: | Click here to view Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA |
| Photo Gallery | View Gallery (15 photos) |
| Data Identifiers |
|---|
|
| Mindat Occurrence Record ID: | 130232 |
| Long-form Identifier: | 1:3:130232:5 |
| GUID (UUID V4): | 8999f7aa-0d8a-40a3-bc5a-15f0936f3fe5 |
| Nearest other occurrences of Bertrandite |
|---|
|
|
| 0.5km (0.3 miles) | βLong Hill prospects (Turkey Hill prospects), Haddam, Middlesex County, Connecticut, USA |
| 1.5km (0.9 miles) | βState Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA |
| 3.4km (2.1 miles) | βConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 4.1km (2.5 miles) | βQuarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 7.1km (4.4 miles) | βAnderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 8.7km (5.4 miles) | βWorth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 9.4km (5.9 miles) | βSlocum prospect, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 12.2km (7.6 miles) | βTollgate Quarry (Tollgate Mine; Bidwell Quarry; China-stone Quarry), Middletown, Middlesex County, Connecticut, USA |
| 13.5km (8.4 miles) | βWhite Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA |
| 13.9km (8.7 miles) | βState Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| References |
|---|
|
|
Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA