| Locality type: | Quarry |
| Classification |
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| Species: | Muscovite var: Schernikite |
| Formula: | KAl2(AlSi3O10)(OH)2 |
| Comments: | Commonly found as thin coatings on feldspar frozen in the mineralogically complex zone, and rarely as crystalline aggregates in miarolitic cavities with elbaite. Most of the "lepidolite" (none have been analyzed) from here is likely schernikite. |
| Habit: | Fibrous crystals with rhombic cross-section formed in parallel growths that resemble waxy columns. |
| Colour: | Pale pink. |
| Quality for species: | Good crystals or rich for species - important (!) |
| Abundance at site: | Common |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Associated Minerals Based on Photo Data: |
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| Elbaite | β17 photos of Schernikite associated with Elbaite at this locality. |
| Albite | β5 photos of Schernikite associated with Albite at this locality. |
| Quartz | β4 photos of Schernikite associated with Quartz at this locality. |
| Microcline | β3 photos of Schernikite associated with Microcline at this locality. |
| Cookeite | β2 photos of Schernikite associated with Cookeite at this locality. |
| Spessartine | β1 photo of Schernikite associated with Spessartine at this locality. |
| Fluorapatite | β1 photo of Schernikite associated with Fluorapatite at this locality. |
| Muscovite | β1 photo of Schernikite associated with Muscovite at this locality. |
| Beryl | β1 photo of Schernikite associated with Beryl at this locality. |
| Schorl | β1 photo of Schernikite associated with Schorl at this locality. |
| Data |
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| Mineral Data: | Click here to view Schernikite 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 (7 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 950758 |
| Long-form Identifier: | 1:3:950758:6 |
| GUID (UUID V4): | 63308182-19d7-42dd-aa25-c397f1f84dfe |
| Nearest other occurrences of Schernikite |
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| 4.4km (2.7 miles) | βGillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 13.5km (8.4 miles) | βWhite Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA |
| 16.9km (10.5 miles) | βStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
| References |
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Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA