Petersite-(Ce)
A valid IMA mineral species
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Formula:
Cu6Ce(PO4)3(OH)6 · 3H2O
Colour:
yellowish-green
Lustre:
Vitreous
Hardness:
3½
Specific Gravity:
3.424 (Calculated)
Crystal System:
Hexagonal
Member of:
Name:
Named for its relationship to pertersite-(Y) and for cerium being the dominant rare earth element.
This page provides mineralogical data about Petersite-(Ce).
Unique Identifiers
Mindat ID:
46097
Long-form identifier:
mindat:1:1:46097:0
GUID
(UUID V4):
(UUID V4):
9df737e2-e881-4c40-9f85-85c24a665ac1
IMA Classification of Petersite-(Ce)
Approved
Approval year:
2014
First published:
2016
Classification of Petersite-(Ce)
8.DL.15
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Pts-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Petersite-(Ce)
Vitreous
Transparency:
Translucent
Colour:
yellowish-green
Streak:
white
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None Observed
Fracture:
None observed
Density:
3.424 g/cm3 (Calculated)
Comment:
Calculated based on the empirical chemical formula
Chemistry of Petersite-(Ce)
Mindat Formula:
Cu6Ce(PO4)3(OH)6 · 3H2O
Crystallography of Petersite-(Ce)
Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Setting:
P63/m
Cell Parameters:
a = 13.2197(18) Å, c = 5.8591(9) Å
Ratio:
a:c = 1 : 0.443
Unit Cell V:
886.76 ų (Calculated from Unit Cell)
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
6.610 Å | (100) |
5.724 Å | (31) |
4.327 Å | (6) |
3.305 Å | (10) |
3.175 Å | (4) |
2.862 Å | (6) |
2.627 Å | (4) |
2.426 Å | (6) |
Comments:
From Type Description.
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] |
Type Occurrence of Petersite-(Ce)
General Appearance of Type Material:
sprays of yellowish-green, acicular crystals approximately 20 μm 20 μm 50 μm in size.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Mineral Museum of the University of Arizona, Tucson, Arizona, USA, catalogue number 19801 and with the RRUFF Project, deposition number R050541
Geological Setting of Type Material:
Highly weathered granite
Associated Minerals at Type Locality:
Reference:
Morrison, S.M., Domanik, K.J., Yang, H., Downs, R.T. (2016) Petersite-(Ce), Cu2+6Ce(PO4)3(OH)6·3H2O, a new mixite group mineral from. The Canadian Mineralogist: 54: 1505-1511.
Synonyms of Petersite-(Ce)
Petersite (in part)
Other Language Names for Petersite-(Ce)
Spanish:Petersita-(Ce)
Relationship of Petersite-(Ce) to other Species
Member of:
Other Members of this group:
Agardite-(Ce) | CeCu6(AsO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Agardite-(La) | LaCu6(AsO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Agardite-(Nd) | NdCu6(AsO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Agardite-(Y) | YCu6(AsO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Calciopetersite | CaCu6(PO4)2(PO3OH)(OH)6 · 3H2O | Hex. 6/m : P63/m |
Goudeyite | AlCu6(AsO4)3(OH)6 · 3H2O | Hex. |
Mixite | BiCu6(AsO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Petersite-(La) | Cu6La(PO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Petersite-(Y) | (Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2O | Hex. |
Plumboagardite | (Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2O | Hex. 6/m : P63/m |
Zálesíite | CaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O | Hex. 6/m : P63/m |
Related Minerals - Strunz-mindat Grouping
8.DL.05 | Foggite | CaAl(PO4)(OH)2 · H2O |
8.DL.10 | Cyrilovite | NaFe3+3(PO4)2(OH)4 · 2H2O |
8.DL.10 | Millisite | (Na,K)CaAl6(PO4)4(OH)9 · 3H2O |
8.DL.10 | Wardite | NaAl3(PO4)2(OH)4 · 2H2O |
8.DL.10 | Fluorowardite | NaAl3(PO4)2F2(OH)2(H2O)2 |
8.DL.15 | Agardite-(Nd) | NdCu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Agardite-(Y) | YCu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Agardite-(Ce) | CeCu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Agardite-(Dy) | (Dy,La)Cu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Agardite-(La) | LaCu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Goudeyite | AlCu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Mixite | BiCu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Petersite-(Y) | (Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2O |
8.DL.15 | Zálesíite | CaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O |
8.DL.15 | Plumboagardite | (Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2O |
8.DL.15 | Calciopetersite | CaCu6(PO4)2(PO3OH)(OH)6 · 3H2O |
8.DL.15 | Petersite-(La) | Cu6La(PO4)3(OH)6 · 3H2O |
8.DL.20 | Cheremnykhite | Pb3Zn3(VO4)2(TeO6) |
8.DL.20 | Dugganite | Pb3Zn3(AsO4)2(TeO6) |
8.DL.20 | Kuksite | Pb3Zn3(PO4)2(TeO6) |
8.DL.20 | Wallkilldellite | Ca2Mn2+3(AsO4)2(OH)4 · 9H2O |
8.DL.20 | Wallkilldellite-(Fe) | (Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8 · 18H2O |
8.DL.25 | Angastonite | CaMgAl2(PO4)2(OH)4 · 7H2O |
8.DL.30 | Långbanshyttanite | Pb2Mn2Mg(AsO4)2(OH)4 · 6H2O |
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 Petersite-(Ce)
mindat.org URL:
https://www.mindat.org/min-46097.html
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References for Petersite-(Ce)
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) New minerals and nomenclature modifications approved in 2014, CNMNC Newsletter No 20. Mineralogical Magazine, 78 (3) 549-558 doi:10.1180/minmag.2014.078.3.05
Localities for Petersite-(Ce)
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).
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.
Japan | |
| Nishio–Hamane et al. (2020) |
USA (TL) | |
| Williams et al. (2014) +2 other references |
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