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Hydroxylapatite from
Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
| Locality type: | Quarry | |
| Classification | ||
|---|---|---|
| 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 | ||
| Validity: | Confirmed | |
| Confirmation Methods: | Visually Identified | |
| Associated Minerals Based on Photo Data: | ||
| Eosphorite | 6 | |
| Fairfieldite | 2 | |
| Lithiophilite | 2 | |
| - var Sicklerite | 1 | |
| Quartz | 1 | |
| Albite | 1 | |
| - var Cleavelandite | 1 | |
| Dickinsonite-(KMnNa) | 1 | |
| Muscovite | 1 | |
| Mitridatite | 1 | |
| Sphalerite | 1 | |
| Data | ||
| Mineral Data: | Click here to view Hydroxylapatite data | |
| Locality Data: | Click here to view Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA | |
| Photo Gallery | View Gallery (2 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 728710 | |
| Long-form Identifier: | 1:3:728710:7 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Hydroxylapatite | ||
| 79.3km (49.3 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA | |
| 81.5km (50.6 miles) | ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA | |
| 97.6km (60.6 miles) | ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA | |
| References | ||
Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA