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Paulkellerite

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Formula:
(BiO)
 
2
Fe
3+
 
(PO
 
4
)(OH)
 
2
System:MonoclinicColour:Yellow-green
Hardness:4
This page provides mineralogical data about Paulkellerite.

Classification of Paulkellerite

IMA status:Approved 1987
Strunz 8th edition ID:7/B.37-10
Nickel-Strunz 10th (pending) edition ID:8.BM.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
M : With medium-sized and large cations, (OH, etc.):RO4 = 4:1
Dana 8th edition ID:41.3.8.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
3 : (AB)3(XO4)Zq
Hey's CIM Ref.:19.10.12

19 : Phosphates
10 : Phosphates of Pb, Th, V and Bi
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Type Occurrence of Paulkellerite

Type Locality:Neuhilfe Flacher vein, Junge Kalbe Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany
Year of Discovery:1988

Physical Properties of Paulkellerite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Yellow-green
Hardness (Mohs):4

Crystallography of Paulkellerite

Crystal System:Monoclinic
Cell Parameters:a = 11.38Å, b = 6.69Å, c = 9.66Å
β = 114.73°
Ratio:a:b:c = 1.701 : 1 : 1.444
Unit Cell Volume:V 667.99 ų (Calculated from Unit Cell)

Optical Data of Paulkellerite

Type:Biaxial (+)
RI values: nα = 1.762 nβ = 1.767 nγ = 1.825
2V:Measured: 37° , Calculated: 34°
Maximum Birefringence:δ = 0.063

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:very strong

Chemical Properties of Paulkellerite

Formula:
(BiO)
 
2
Fe
3+
 
(PO
 
4
)(OH)
 
2
Essential elements:Bi, Fe, H, O, P
All elements listed in formula:Bi, Fe, H, O, P
Common Impurities:CO2

Relationship of Paulkellerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BM.05Retzian-(Ce)
Mn
2+
2
Ce(AsO
 
4
)(OH)
 
4
8.BM.05Retzian-(La)
(Mn
2+
 
,Mg)
 
2
(La,Ce,Nd)(AsO
 
4
)(OH)
 
4
8.BM.05Retzian-(Nd)
Mn
2+
2
(Nd,Ce,La)(AsO
 
4
)(OH)
 
4
8.BM.10Kolitschite
PbZn
 
0.5
Fe
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BM.15Brendelite
(Bi
3+
 
,Pb)
 
2
(Fe
3+
 
,Fe
2+
 
)(PO
 
4
)O
 
2
(OH)
Related Minerals - Hey's Index Grouping:

- +
19.10.1 Oxypyromorphite
Pb
 
10
(PO
 
4
)
 
6
O
19.10.2Plumbogummite
PbAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
19.10.3Kamitugaite
AlPb(UO
 
2
)
 
5
(PO
 
4
,AsO
 
4
)
 
2
(OH)
 
9
 · 5H
 
2
O
19.10.5Drugmanite
Pb(Fe
3+
 
,Al)
 
2
(PO
 
4
)
 
2
(OH)
 
2
19.10.6Brabantite
CaTh(PO
 
4
)
 
2
19.10.8Grayite
(Th,Pb,Ca)(PO
 
4
) · H
 
2
O
19.10.9Brockite
(Ca,Th,Ce)PO
 
4
 · H
 
2
O
19.10.10Sincosite
Ca(VO)
 
2
(PO
 
4
)
 
2
 · 5H
 
2
O
19.10.11Ximengite
Bi(PO
 
4
)

Other Names for Paulkellerite

Synonyms:
IMA1987-031
Other Languages:
German:Paulkellerit
Russian:Паулкеллерит
Spanish:Paulkellerita

Other Information

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 Paulkellerite

Reference List:

- +
Dunn, P. J., Grice, J. D., Wicks, F. J. & Gault, R. A. (1988): Paulkellerite, a new bismuth iron phosphate mineral from Schneeberg, Germany. American Mineralogist: 73: 870-872.

American Mineralogist: 73: 873-875.

Internet Links for Paulkellerite

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    • Localities for Paulkellerite

    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.
    Germany
     
    • Saxony
      • Erzgebirge
        • Schneeberg District
          • Neustädtel
            • Junge Kalbe Mine
    		Amer. Min. (1988) 73, 870-872 and 873-875
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