Locality type: | Quarry |
Classification |
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Species: | Cookeite |
Formula: | (LiAl4◻)[AlSi3O10](OH)8 |
Comments: | Globules typically a few mm across, encrusting pocket albite, smoky quartz, microcline, lepidolite, elbaite terminations. When naturally removed, leave hemispherical pits on quartz crystal surfaces. |
Habit: | globular masses of radial hexagonal plates |
Colour: | yellowish-white |
Luminescent properties: | yellow |
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 | ⓘ36 photos of Cookeite associated with Elbaite at this locality. |
Smoky Quartz | ⓘ27 photos of Cookeite associated with Smoky Quartz at this locality. |
Schernikite | ⓘ20 photos of Cookeite associated with Schernikite at this locality. |
Quartz | ⓘ12 photos of Cookeite associated with Quartz at this locality. |
Cleavelandite | ⓘ12 photos of Cookeite associated with Cleavelandite at this locality. |
Microcline | ⓘ8 photos of Cookeite associated with Microcline at this locality. |
Lepidolite | ⓘ4 photos of Cookeite associated with Lepidolite at this locality. |
Fluorapatite | ⓘ4 photos of Cookeite associated with Fluorapatite at this locality. |
Goshenite | ⓘ2 photos of Cookeite associated with Goshenite at this locality. |
Muscovite | ⓘ2 photos of Cookeite associated with Muscovite at this locality. |
Data |
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Mineral Data: | Click here to view Cookeite data |
Locality Data: | Click here to view Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
Photo Gallery | View Gallery (8 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 38365 |
Long-form Identifier: | 1:3:38365:7 |
GUID (UUID V4): | 7a4ba58b-d4d8-4375-884c-2b57325cfab2 |
Nearest other occurrences of Cookeite |
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0.6km (0.4 miles) | ⓘQuarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
2.8km (1.7 miles) | ⓘAnderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA |
4.4km (2.7 miles) | ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA |
10.1km (6.3 miles) | ⓘWhite Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA |
10.6km (6.6 miles) | ⓘRiverside Quarry (Western Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA |
11.8km (7.3 miles) | ⓘState Forest Quarry No. 1 (State Forest #1 Quarry; Clark Hill Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA |
13.0km (8.1 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
17.7km (11.0 miles) | ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
17.9km (11.1 miles) | ⓘBrack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
84.3km (52.4 miles) | ⓘBlandford mica mines, Blandford, Hampden County, Massachusetts, USA |
References |
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Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA