Carbonate-rich Apatite
A variety of 'Apatite'
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About Carbonate-rich Apatite
Formula:
Ca5(PO4)3(Cl/F/OH)
Synonyms pertaining to undifferentiated carbonate-bearing apatites (fluorapatite, hydroxylapatite) are listed in this file.
Crystals short to long hexagonal prisms [0001], with {1010} and {1011} dominant; also thick tabular {0001}, frequently in the crystals of hydrothermal origin in pegmatites and veins, with {1010}, relatively large {0001}, and often also {1011} or low pyramids. Massive, coarse granular to compact. Globular or reniform at times with a sub-fibrous, scaly, or imperfectly columnar structure or as fibrous crusts (especially in Carbonate-apatite).
Occurs extensively as nodules in phosphatic rock; as crusts on chlorapatite; in crevices in sodalite rock; in guano-derived deposits; as zonal overgrowths on fluorapatite; and as crusts in pegmatites.
Crystals short to long hexagonal prisms [0001], with {1010} and {1011} dominant; also thick tabular {0001}, frequently in the crystals of hydrothermal origin in pegmatites and veins, with {1010}, relatively large {0001}, and often also {1011} or low pyramids. Massive, coarse granular to compact. Globular or reniform at times with a sub-fibrous, scaly, or imperfectly columnar structure or as fibrous crusts (especially in Carbonate-apatite).
Occurs extensively as nodules in phosphatic rock; as crusts on chlorapatite; in crevices in sodalite rock; in guano-derived deposits; as zonal overgrowths on fluorapatite; and as crusts in pegmatites.
Unique Identifiers
Mindat ID:
31325 (as Carbonate-rich Apatite)
29229 (as Apatite)
29229 (as Apatite)
Long-form identifier:
mindat:1:1:31325:6 (as Carbonate-rich Apatite)
mindat:1:1:29229:0 (as Apatite)
mindat:1:1:29229:0 (as Apatite)
Similar Names
Chemistry of Carbonate-rich Apatite
Mindat Formula:
Ca5(PO4)3(Cl/F/OH)
Element Weights:
Synonyms of Carbonate-rich Apatite
Other Language Names for Carbonate-rich Apatite
Varieties of Carbonate-rich Apatite
| Collophane | A name used for the massive, cryptocrystalline, colloidal (amorphous) varieties of carbonate-rich fluorapatite or carbonate-rich hydroxylapatite, such as those that constitute the bulk of phosphate rock and fossil bone. The original material was carbonate... |
Common Associates
Associations Based on Photo Data:
| 5 photos of Carbonate-rich Apatite associated with Calcioferrite | Ca4MgFe3+4(PO4)6(OH)4 · 12H2O |
| 5 photos of Carbonate-rich Apatite associated with Wardite | NaAl3(PO4)2(OH)4 · 2H2O |
| 4 photos of Carbonate-rich Apatite associated with Millisite | (Na,K)CaAl6(PO4)4(OH)9 · 3H2O |
| 4 photos of Carbonate-rich Apatite associated with Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| 3 photos of Carbonate-rich Apatite associated with Variscite | AlPO4 · 2H2O |
| 2 photos of Carbonate-rich Apatite associated with Galena | PbS |
| 2 photos of Carbonate-rich Apatite associated with Kaolinite | Al2(Si2O5)(OH)4 |
| 2 photos of Carbonate-rich Apatite associated with Goethite | Fe3+O(OH) |
| 2 photos of Carbonate-rich Apatite associated with Kupletskite | K2NaMn2+7Ti2[Si4O12]2O2(OH)4F |
| 2 photos of Carbonate-rich Apatite associated with 'Saamite (of Volkova & Melentiev)' | (Ca,Sr,REE)5(PO4)3(F,O) |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Carbonate-rich Apatite
mindat.org URL:
https://www.mindat.org/min-31325.html
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References for Carbonate-rich Apatite
Reference List:
Schaller, W. T. (1911) Über die wahrscheinliche Identität von Podolit und Dahllit. Zeitschrift für Kristallographie, 48 (1-6). 561-563 doi:10.1524/zkri.1911.48.1.561(as podolite, dahllite)
Washington, Henry S. (1929) Dahllite from St. Paul's Rocks (Atlantic) American Mineralogist, 14 (10) 369-372
McConnell, Duncan (1935) Spherulitic concretions of dahllite from Ishawooa, Wyoming. American Mineralogist, 20 (10) 693-698
McConnell, Duncan; Groner, John W. (1940) The problem of the carbonate-apatites. III. Carbonate-apatite from Magnet Cove. American Mineralogist, 25 (3). p.157-167.
Localities for Carbonate-rich Apatite
Showing 341 localities.
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Flambeau Mine, Ladysmith, Rusk County, Wisconsin, USA