Locality type: | Quarry |
Classification |
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Species: | Hydroxylapatite |
Formula: | Ca5(PO4)3(OH) |
Comments: | Frosty, translucent, pale yellow micro crystals encrusting pocket quartz, cleavelandite, and a much larger, glassy fluorapatite crystal. Originally labeled as calcite, but does not react to HCl, has hardness 5, no visible cleaveage, and does not fluoresce. |
Habit: | elongated hexagonal prisms with rounded edges and terminations |
Colour: | pale yellow with frosty terminations |
Luminescent properties: | none |
Abundance at site: | Very Rare |
Confirmation |
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Validity: | Confirmed |
Confirmation Methods: | Visually Identified |
Associated Minerals Based on Photo Data: |
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Eosphorite | ⓘ6 photos of Hydroxylapatite associated with Eosphorite at this locality. |
Fairfieldite | ⓘ2 photos of Hydroxylapatite associated with Fairfieldite at this locality. |
Quartz | ⓘ1 photo of Hydroxylapatite associated with Quartz at this locality. |
Lithiophilite | ⓘ1 photo of Hydroxylapatite associated with Lithiophilite at this locality. |
Cleavelandite | ⓘ1 photo of Hydroxylapatite associated with Cleavelandite at this locality. |
Sicklerite | ⓘ1 photo of Hydroxylapatite associated with Sicklerite at this locality. |
Mitridatite | ⓘ1 photo of Hydroxylapatite associated with Mitridatite at this locality. |
Muscovite | ⓘ1 photo of Hydroxylapatite associated with Muscovite at this locality. |
Sphalerite | ⓘ1 photo of Hydroxylapatite associated with Sphalerite at this locality. |
Data |
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Mineral Data: | Click here to view Hydroxylapatite data |
Locality Data: | Click here to view Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA |
Photo Gallery | View Gallery (2 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 728710 |
Long-form Identifier: | 1:3:728710:7 |
GUID (UUID V4): | 003bb840-16a4-4257-881f-ece374e61721 |
Nearest other occurrences of Hydroxylapatite |
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79.3km (49.3 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
81.4km (50.6 miles) | ⓘState Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA |
97.6km (60.6 miles) | ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA |
References |
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Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA