Florencite-(Ce)
A valid IMA mineral species - grandfathered
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About Florencite-(Ce)
Formula:
CeAl3(PO4)2(OH)6
Colour:
Pale yellow to butterscotch-yellow, red-orange, pink, pale brown, colorless to gray; colorless to pale yellow in thin section, may be zoned.
Lustre:
Resinous, Greasy
Hardness:
5 - 6
Specific Gravity:
3.45 - 3.54
Crystal System:
Trigonal
Member of:
Name:
Named florencite in honor of Dr. Guilherme (William) Florence (19 June 1864 - 5 October 1942), Brazilian mineralogist with the Sao Paulo Geographic and Geological Commission. He made a preliminary chemical examination of the mineral. The "-(Ce)" suffix was added in 1987 (Nickel and Mandarino), in allusion to cerium being the dominant REE in the composition.
This page provides mineralogical data about Florencite-(Ce).
Unique Identifiers
Mindat ID:
1560
Long-form identifier:
mindat:1:1:1560:4
GUID
(UUID V4):
(UUID V4):
22086fca-ff9d-4242-8f6d-fdae96294953
IMA Classification of Florencite-(Ce)
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1899
Classification of Florencite-(Ce)
8.BL.13
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
41.5.10.2
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
19.9.10
19 : Phosphates
9 : Phosphates of rare earths and Sc
19 : Phosphates
9 : Phosphates of rare earths and Sc
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Flo-Ce | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Florencite-(Ce)
Resinous, Greasy
Transparency:
Transparent, Translucent
Colour:
Pale yellow to butterscotch-yellow, red-orange, pink, pale brown, colorless to gray; colorless to pale yellow in thin section, may be zoned.
Hardness:
5 - 6 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good on {0001}; interrupted on {1120}
Good on {0001}; interrupted on {1120}
Fracture:
Splintery, Sub-Conchoidal
Density:
3.45 - 3.54 g/cm3 (Measured) 3.58(11) g/cm3 (Calculated)
Optical Data of Florencite-(Ce)
Type:
Uniaxial (+)
RI values:
nω = 1.747 nε = 1.776
Max Birefringence:
δ = 0.029
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Chemistry of Florencite-(Ce)
Mindat Formula:
CeAl3(PO4)2(OH)6
Crystallography of Florencite-(Ce)
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 6.972(2) Å, c = 16.261(6) Å
Ratio:
a:c = 1 : 2.332
Unit Cell V:
684.53 Ă
Âł (Calculated from Unit Cell)
Z:
3
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0014842 | Florencite-(Ce) | Kato T (1990) The crystal structure of florencite Neues Jahrbuch fur Mineralogie, Monatshefte 1990 227-231 | 1990 | Backbone Ranges of Mackenzie Mountains, Northwest Territories, Canada | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.93 Ă | (100 broad) |
5.63 Ă | (90) |
2.16 Ă | (80) |
1.885 Ă | (80) |
3.48 Ă | (70) |
2.21 Ă | (70) |
1.741 Ă | (70) |
Comments:
Matta dos Creoulos, Brazil. ICDD 8-143.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47c : [Carbonates, phosphates, borates, nitrates] | |
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
52 : Guano- and urine-derived minerals | <0.4 |
Type Occurrence of Florencite-(Ce)
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, R5209.
Reference:
Hussak, E., Prior, G.T. (1900) Florencite, a new hydrated phosphate of aluminium and the cerium earths, from Brazil. Mineralogical Magazine: 12: 244-248.
Synonyms of Florencite-(Ce)
Stiepelmannite (in part)
Florencite (in part)
Other Language Names for Florencite-(Ce)
Relationship of Florencite-(Ce) to other Species
Member of:
Other Members of this group:
Benauite | SrFe3+3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
Crandallite | CaAl3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
Eylettersite | Th0.75Al3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
Florencite-(La) | LaAl3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
Florencite-(Nd) | NdAl3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
Florencite-(Sm) | SmAl3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
Galloplumbogummite | Pb(Ga,Al,Ge)3(PO4)2(OH)6 | Trig. 3m : R3m |
Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 | Mon. m : Bm |
Goyazite | SrAl3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
Kintoreite-2c | PbFe3+3(PO4)2(OH,H2O)6 | |
Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
Springcreekite | BaV3+3(PO4)2(OH,H2O)6 | Trig. 3m (3 2/m) : R3m |
UM2006-23-PO:AlBiCaFeH | (Ca,Bi)(Fe,Al)3(PO4)(PO3OH)(OH)6 | |
Unnamed (As-analogue of ZaĂŻrite) | (Bi,Pb)Fe3+3(AsO4)2(OH)6 | |
Waylandite | BiAl3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
ZaĂŻrite | BiFe3+3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
Common Associates
Associated Minerals Based on Photo Data:
39 photos of Florencite-(Ce) associated with Magnesite | MgCO3 |
32 photos of Florencite-(Ce) associated with Quartz | SiO2 |
19 photos of Florencite-(Ce) associated with Fluor-uvite-Uvite Series | |
9 photos of Florencite-(Ce) associated with Microcline | K(AlSi3O8) |
8 photos of Florencite-(Ce) associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
7 photos of Florencite-(Ce) associated with Fluorite | CaF2 |
6 photos of Florencite-(Ce) associated with Florencite-(Sm) | SmAl3(PO4)2(OH)6 |
6 photos of Florencite-(Ce) associated with Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
5 photos of Florencite-(Ce) associated with Xenotime-(Y) | Y(PO4) |
5 photos of Florencite-(Ce) associated with Lithiophorite | (Al,Li)MnO2(OH)2 |
Related Minerals - Strunz-mindat Grouping
8.BL. | Graulichite-(La) | LaFe3+3(AsO4)2(OH)6 |
8.BL. | Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 |
8.BL. | Kiryuite | NaMnAl(PO4)F3 |
8.BL. | Cloudite | BaFe3+3(PO4)(SO4)(OH)6 |
8.BL.05 | Beudantite | PbFe3(AsO4)(SO4)(OH)6 |
8.BL.05 | Corkite | PbFe3(PO4)(SO4)(OH)6 |
8.BL.05 | Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 |
8.BL.05 | Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
8.BL.05 | Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 |
8.BL.05 | Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
8.BL.05 | Weilerite | BaAl3(AsO4)(SO4)(OH)6 |
8.BL.05 | Woodhouseite | CaAl3(PO4)(SO4)(OH)6 |
8.BL.05 | Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 |
8.BL.05 | UM2011-07-POSO:AlBaH | BaAl3(PO4)(SO4)(OH)6 |
8.BL.10 | Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Benauite | SrFe3+3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Dussertite | BaFe3+3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Eylettersite | Th0.75Al3(PO4)2(OH)6 |
8.BL.10 | Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Philipsbornite | PbAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Segnitite | PbFe3+3AsO4(AsO3OH)(OH)6 |
8.BL.10 va | Viséite | |
8.BL.10 | Springcreekite | BaV3+3(PO4)2(OH,H2O)6 |
8.BL.10 | Galloplumbogummite | Pb(Ga,Al,Ge)3(PO4)2(OH)6 |
8.BL.13 | Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 |
8.BL.13 | Arsenoflorencite-(Nd) | NdAl3(AsO4)2(OH)6 |
8.BL.13 | Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 |
8.BL.13 | Florencite-(La) | LaAl3(PO4)2(OH)6 |
8.BL.13 | Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
8.BL.13 | Waylandite | BiAl3(PO4)2(OH)6 |
8.BL.13 | ZaĂŻrite | BiFe3+3(PO4)2(OH)6 |
8.BL.13 | Arsenowaylandite | BiAl3(AsO4)2(OH)6 |
8.BL.13 | Graulichite-(Ce) | CeFe3+3(AsO4)2(OH)6 |
8.BL.13 | Florencite-(Sm) | SmAl3(PO4)2(OH)6 |
8.BL.13 | Unnamed (As-analogue of ZaĂŻrite) | (Bi,Pb)Fe3+3(AsO4)2(OH)6 |
8.BL.15 | Viitaniemiite | Na(Ca,Mn2+)Al(PO4)(F,OH)3 |
8.BL.25 | Pattersonite | PbFe3+3(PO4)2(OH)5 · H2O |
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 Florencite-(Ce)
mindat.org URL:
https://www.mindat.org/min-1560.html
Please feel free to link to this page.
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References for Florencite-(Ce)
Reference List:
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin Vol. 679. US Geological Survey doi:10.3133/b679 p.76
Localities for Florencite-(Ce)
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Argentina | |
| Edwardo Jawerbaum +1 other reference |
| Minerals acquired from Nelson Valenzuela |
| Colombo et al. (2011) |
Australia | |
| American Mineralogist (1987) |
| implications for ore genesis. Neues ... +4 other references |
| Bottrill (2000) |
Bottrill et al. (2008) | |
Austria | |
| G.BlaĂ (2000) |
| Kolitsch et al. (2021) |
| Bernhard et al. (2004) |
| F. Bernhard et al. (1998) |
SEM-EDS on polished section | |
| |
| Leikauf et al. (2007) |
| Kolitsch et al. (2023) |
| Kolitsch et al. (2020) |
| Kolitsch (2014) |
Kolitsch (2015) | |
Belgium | |
| Hanson (1983) +1 other reference |
| Theunissen et al. (1969) +1 other reference |
| Hatert et al. (2002) |
| Dehove et al. (2006) |
Hatert et al. (2002) | |
Blondieau (2005) | |
Blondieau (2005) | |
Bolivia | |
| Petrov et al. (2006) |
Brazil | |
| P Bongaerts collection |
| Ricardo Scholz collection. |
Hussak and Prior (1900) | |
| Waber (1991) |
| Hussak and Prior (1900) |
Bulgaria | |
| Kunov +2 other references |
| Hikov (2019) |
Canada | |
| Reid et al. (2016) |
ADLAKHA et al. (2016) | |
Chile | |
| Deyell et al. (2005) |
China | |
| Ruidong Yang et al. (2006) |
| Zhongxin Yuan et al. (2007) |
Croatia | |
| TomaĆĄiÄ et al. (2021) |
Czech Republic | |
| HorĂĄkovĂĄ |
| Scharm +7 other references |
| DolnĂÄek et al. (2023) |
| KuÄera |
| PauliĆĄ et al. (2007) |
| PauliĆĄ P et al. (2020) |
| Sejkora (1998) |
Sejkora (1998) | |
Europe | |
| Sejkora et al. (2009) |
Finland | |
| Knorring |
Gabon | |
| Janusz Janeczek (1999) |
Germany | |
| Walenta (1992) |
| Wittern (2001) |
| H. G. Dill (1995) |
| BLAĂ et al. (1995) |
Hungary | |
| DĂĄvid SzabĂł collection: SĂĄndor ... |
| SzakĂĄll:100 Hungarian Mineral Locality |
Italy | |
| BedognĂš et al. (2006) |
| Tilghman (2014) |
| Folie et al. (2010) |
| Senesi F. (Valdicastello Carducci, Lucca) |
Japan | |
| Nakamura et al. (2009) +2 other references |
| Alfredo Petrov specimens |
| Matsubara and Kato (1998) |
Kenya | |
| Liferovich et al. (1998) |
Namibia | |
| Palache et al. (1951) +1 other reference |
Medenbach (2001) | |
Peru | |
| Dill et al. (1997) |
Poland | |
| BartĆomiej Kajdas |
| Ć. Kruszewski PXRD & pXRF data (paper in preparation) |
| Ć. Kruszewski PXRD & pXRF data (paper in preparation) |
| Kruszewski et al. (2018) |
Portugal | |
Alves (2016) | |
Romania | |
| Hirtopanu (2006) |
| SzakĂĄll et al. (2010) |
Russia | |
| Jambor et al. (2001) |
| Kasatkin et al. (2020) |
| Keren Tan (1998) |
| Bukanov et al. (2012) |
| Pavel.M. Kartashov (n.d.) |
geo.web.ru (2018) | |
Repina (2023) | |
| Sharygin +11 other references |
| ... |
| chemistry and genesis et al. (in Russian) +1 other reference |
| S.M. Kravchenko data +1 other reference |
Slovakia | |
| KodÄra (1986) |
South Africa | |
| Fuchs et al. (2017) |
Spain | |
| Dill et al. (2023) |
Sweden | |
| Sandström (2007) |
| Ek et al. (1990) |
Switzerland | |
| Roth (2007) |
USA | |
| |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Nashua Min. Soc. Disp. Cat. |
| Don & Cookie Saathoff collection |
| Rocks & Min. (2007) |
Venezuela | |
| Alfredo Petrov specimen |
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Pomba pit, Serra das Ăguas, Brumado, Bahia, Brazil