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Arsenoflorencite-(Ce)

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Hourt Quarry, Grand Halleux, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
© Elmar Lackner

Show Arsenoflorencite-(Ce) Photos (8)



Formula:
CeAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
System:TrigonalColour:Colourless to white, ...
Hardness:3½
Member of:Florencite Group
Name:Named by Ernest H. Nickel and J. E. Temperly in 1987 as the arsenate analog of florencite-(Ce).
Isostructural with:Crandallite


The Al-dominant analogue of Graulichite-(Ce).

Classification of Arsenoflorencite-(Ce)

IMA status:Approved 1985
Strunz 8th edition ID:7/B.36-120
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:41.5.11.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Hey's CIM Ref.:20.4.7

20 : Arsenates (also arsenates with phosphate, but without other anions)
4 : Arsenates of Group III metals (Al, rare earths)
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Type Occurrence of Arsenoflorencite-(Ce)

Type Locality:Kimba, Eyre Peninsula, South Australia, Australia
General Appearance of Type Material:Rounded grains, also scalenohedral crystals'
Year of Discovery:1985
Geological Setting of type material:Detrital grains in a heavy mineral concentrate.
Associated Minerals at type locality:
QuartzFlorencite-(Ce)Alunite

Physical Properties of Arsenoflorencite-(Ce)

Lustre:Sub-Vitreous, Resinous, Waxy, Dull
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colourless to white, light brown
Streak:White
Hardness (Mohs):3½
Tenacity:Brittle
Cleavage:None Observed
Probably perfect {0001}, as are other members of the group.
Density (measured):4.096 g/cm3
Density (calculated):4.091 g/cm3

Crystallography of Arsenoflorencite-(Ce)

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3m {R3 2/m}
Space Group Setting:R3m
Cell Parameters:a = 7.029Å, c = 16.517Å
Ratio:a:c = 1 : 2.35
Unit Cell Volume:V 706.72 ų (Calculated from Unit Cell)
Z:3
Morphology:Scalenohedfral {1011} and {1012}
X-Ray Powder Diffraction:
d-spacingIntensity
3.513 (60)
2.963 (100)
2.752 (30)
2.201 (40)
1.905 (50)
1.753 (40)
1.627 (30)

Optical Data of Arsenoflorencite-(Ce)

Type:Uniaxial (+)
RI values: nω = 1.739 nε = 1.745
Birefringence:0.006
Maximum Birefringence:δ = 0.006

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Optical Extinction:Parallel
Pleochroism:Non-pleochroic

Chemical Properties of Arsenoflorencite-(Ce)

Formula:
CeAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
Essential elements:Al, As, Ce, H, O
All elements listed in formula:Al, As, Ce, H, O

Relationship of Arsenoflorencite-(Ce) to other Species

Member of:Florencite Group
Other Members of Group:

- +
Arsenoflorencite-(La)
(La,Ce,Nd)(Al,Fe
3+
 
)
 
3
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
Arsenoflorencite-(Nd)
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
Arsenowaylandite
BiAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
Florencite-(Ce)
CeAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
Florencite-(La)
LaAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
Florencite-(Nd)
(Nd,La,Ce)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
Florencite-(Sm)
(Sm,Nd)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
Graulichite-(Ce)
CeFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
6
Waylandite
BiAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
Zaïrite
Bi(Fe
3+
 
,Al)
 
3
(PO
 
4
)
 
2
(OH)
 
6
Related Minerals - Nickel-Strunz Grouping):

- +
8.BL.05Beudantite
PbFe
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Corkite
PbFe
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Hidalgoite
PbAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Hinsdalite
PbAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Kemmlitzite
(Sr,Ce)Al
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Svanbergite
SrAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Weilerite
8.BL.05Woodhouseite
CaAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Gallobeudantite
PbGa
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.10Arsenogoyazite
SrAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Arsenogorceixite
BaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Arsenocrandallite
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Benauite
SrFe
3+
3
(PO
 
4
,SO
 
4
)(HPO
 
4
,PO
 
4
)(OH)
 
6
8.BL.10Crandallite
CaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Dussertite
BaFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
5
8.BL.10Eylettersite
(Th,Pb)Al
 
3
(PO
 
4
,SiO
 
4
)
 
2
(OH)
 
6
8.BL.10Gorceixite
BaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Goyazite
SrAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Kintoreite
PbFe
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
8.BL.10Philipsbornite
PbAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Plumbogummite
PbAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Segnitite
PbFe
3+
3
(AsO
 
4
)
 
2
(OH,H
 
2
O)
 
6
8.BL.10Springcreekite
BaV
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
8.BL.13Arsenoflorencite-(La)
(La,Ce,Nd)(Al,Fe
3+
 
)
 
3
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
8.BL.13Arsenoflorencite-(Nd)
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(Ce)
CeAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(La)
LaAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(Nd)
(Nd,La,Ce)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Waylandite
BiAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Zaïrite
Bi(Fe
3+
 
,Al)
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Arsenowaylandite
BiAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Graulichite-(Ce)
CeFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(Sm)
(Sm,Nd)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.15Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
8.BL.25Pattersonite
PbFe
3+
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.4.1Mansfieldite
AlAsO
 
4
 · 2H
 
2
O
20.4.2Bulachite
Al
 
2
(AsO
 
4
)(OH)
 
3
 · 3H
 
2
O
20.4.3Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
20.4.4Luetheite
Cu
 
2
Al
 
2
(AsO
 
4
)
 
2
(OH)
 
4
20.4.5Arsenogoyazite
SrAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
20.4.6Arsenocrandallite
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
20.4.8Arsenoflorencite-(La)
(La,Ce,Nd)(Al,Fe
3+
 
)
 
3
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
20.4.9Arsenoflorencite-(Nd)
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
20.4.10Gerdtremmelite
(Zn,Fe)(Al,Fe)
 
2
(AsO
 
4
)(OH)
 
5
20.4.11Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
20.4.12Chernovite-(Y)
Y(AsO
 
4
)
20.4.13Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
20.4.14Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
20.4.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
20.4.16Retzian-(Ce)
Mn
2+
2
Ce(AsO
 
4
)(OH)
 
4
20.4.17Retzian-(La)
(Mn
2+
 
,Mg)
 
2
(La,Ce,Nd)(AsO
 
4
)(OH)
 
4
20.4.18Retzian-(Nd)
Mn
2+
2
(Nd,Ce,La)(AsO
 
4
)(OH)
 
4

Other Names for Arsenoflorencite-(Ce)

Synonyms:
IMA1985-053
Other Languages:
German:Arsenoflorencit-(Ce)

Other Information

Fluorescence in UV light:Not fluorescent in UV
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Arsenoflorencite-(Ce)

Reference List:

- +
Nickel, E. H. & Temperly, J. E. (1987): Arsenoflorencite-(Ce): a new arsenate mineral from Australia. Mineralogical Magazine 51, 605-609.

American Mineralogist: 73: 1492-1493.

Internet Links for Arsenoflorencite-(Ce)

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    • Localities for Arsenoflorencite-(Ce)

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Northern Territory
      • Gulf of Carpenteria
    		E. H. Nickel & J. E. Temperly: Mineral. Mag. 51:605-609 (1987)
    • South Australia
      • Eyre Peninsula
    		E. H. Nickel & J. E. Temperly: Mineral. Mag. 51:605-609 (1987)
        • Port Agusta
    		E. H. Nickel & J. E. Temperly: Mineral. Mag. 51:605-609 (1987)
    Belgium
     
    • Luxembourg Province
      • Stavelot Massif
        • Vielsalm
          • Grand Halleux
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
    		Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Gengenbach
          • Haigerach valley
    		Wittern,A. (1995) Mineralien finden im Schwarzwald
    • Thuringia
      • Harz
        • Nordhausen
          • Ilfeld
    		J. Gröbner, U. Kolitsch and J. Wesiger (2011): New finds of vanadate and rare-earth minerals from the manganese mine Ilfeld, Harz. Mineralien-Welt 22 (1), 41-49. (in German)
    Norway
     
    • Nordland
      • Tjeldsund
    		Selbekk, R. S., Husdal, T. A. & Berg, H-J. (2010): Nye mineraler for Norge i 2010. Stein. 37 (4): 24-26
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Oberhalbstein (Surses; Sursass)
        • Tinizong (Tinzen)
    		U. Kolitsch & J. Gröbner (single-crystal X-ray diffraction + SEM-EDS)
    Mineral and/or Locality
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