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Petersite-(Y)

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Big Photo

Laurel Hill (Snake Hill; Penetentiary Quarry), Secaucus, Hudson Co., New Jersey, USA
© JBS 2006

Show Petersite-(Y) Photos (7)



Formula:
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
System:HexagonalColour:yellowish green
Hardness:3 - 4
Member of:Mixite Group


Mixite Group.

Classification of Petersite-(Y)

IMA status:Approved 1981
Strunz 8th edition ID:7/D.53-10
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:42.5.2.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)7(XO4)3Zq·xH2O
Hey's CIM Ref.:19.4.10

19 : Phosphates
4 : Phosphates of Ca
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Type Occurrence of Petersite-(Y)

Type Locality:Laurel Hill (Snake Hill; Penetentiary Quarry), Secaucus, Hudson Co., New Jersey, USA

Physical Properties of Petersite-(Y)

Colour:yellowish green
Streak:white
Hardness (Mohs):3 - 4
Cleavage:None Observed

Crystallography of Petersite-(Y)

Crystal System:Hexagonal

Optical Data of Petersite-(Y)

Type:Uniaxial (+)
RI values: nω = 1.666 nε = 1.747
Maximum Birefringence:δ = 0.081

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

Chemical Properties of Petersite-(Y)

Formula:
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Essential elements:Cu, H, O, P, Y
All elements listed in formula:Ce, Cu, H, Nd, O, P, Y

Relationship of Petersite-(Y) to other Species

Member of:Mixite Group
Other Members of Group:

- +
Agardite-(Ce)
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(Dy)
(Dy,La)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
 · 3H
 
2
O
Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DL.05Foggite
CaAl(PO
 
4
)(OH)
 
2
 · H
 
2
O
8.DL.10Cyrilovite
NaFe
3+
3
(PO
 
4
)
 
2
(OH)
 
2
 · 2H
 
2
O
8.DL.10Millisite
(Na,K)CaAl
 
6
(PO
 
4
)
 
4
(OH)
 
9
 · 3H
 
2
O
8.DL.10Wardite
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 2H
 
2
O
8.DL.15Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(Ce)
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Plumboagardite
(Pb,REE,Ca)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.20Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Wallkilldellite-(Mn)
Ca
 
2
Mn
2+
3
(AsO
 
4
)
 
2
(OH)
 
4
 · 9H
 
2
O
8.DL.20Wallkilldellite-(Fe)
(Ca,Cu)
 
4
Fe
2+
6
(AsO
 
4
,SiO
 
4
)
 
4
(OH,O)
 
8
 · 18H
 
2
O
8.DL.25Angastonite
CaMgAl
 
2
(PO
 
4
)
 
2
(OH)
 
4
 · 7H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.4.1Monetite
Ca(HPO
 
4
)
19.4.2Hydroxylapatite
Ca
 
5
(PO
 
4
)
 
3
(OH)
19.4.3Brushite
Ca(HPO
 
4
) · 2H
 
2
O
19.4.4Isoclasite
Ca
 
2
(PO
 
4
)(OH) · 2H
 
2
O
19.4.5Buchwaldite
NaCa(PO
 
4
)
19.4.6Canaphite
Na
 
2
Ca(P
 
2
O
 
7
) · 4H
 
2
O
19.4.7Mundrabillaite
(NH
 
4
)
 
2
Ca(HPO
 
4
)
 
2
 · H
 
2
O
19.4.8Whitlockite
Ca
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
19.4.9Brianite
Na
 
2
CaMg(PO
 
4
)
 
2

Other Names for Petersite-(Y)

Synonyms:
IMA1981-064Petersite
Other Languages:
German:Petersit
Spanish:Petersita

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 Petersite-(Y)

Reference List:

- +
Peacor, D. R. & Dunn, P. J. (1982): Petersite, a REE and phosphate analog of mixite. American Mineralogst: 67: 1039-1042.

Olmi, F., Sabelli, C., Trosti Ferroni, R. (1991): A contribution to the crystal chemistry of mixite group minerals from Sardinia (Italy). Neues Jahrbuch für Mineralogie, Monatshefte, 1991, 487-499.

Internet Links for Petersite-(Y)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Petersite-(Y) details from Handbook of Mineralogy (PDF)
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    • Localities for Petersite-(Y)

    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.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník
    		Sejkora, J., Pauliš, P., Škoda, R.: Uranové ložisko Zálesí v Rychlebských horách. Minerál, 2007, roč. 15, č. 4, s. 305-238.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Gengenbach
          • Haigerach valley
    		Wittern,A. (1995) Mineralien finden im Schwarzwald
        • Schapbach
          • Wildschapbach valley
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Saxony
      • Erzgebirge
        • Clausnitz - Sayda District
          • Sayda
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Italy
     
    • Sardinia
      • Carbonia-Iglesias Province
        • Domusnovas
          • Oridda
    		Olmi, F., Sabelli, C., Trosti Ferroni, R. (1991): A contribution to the crystal chemistry of mixite group minerals from Sardinia (Italy). Neues Jahrbuch für Mineralogie - Monatshefte, 1991, 487-499
    Japan
     
    • Honshu Island
      • Kinki Region
        • Shiga Prefecture
          • Konan City
            • Ishibe
    		Okamoto, A., Miyawaki, R. & Nakai, I. (1988): Petersite from the Haiyama quarry, Shiga Prefecture, Japan. Geoscience Magazine 37, 191-194.
    USA
     
    • New Jersey
      • Hudson Co.
        • Secaucus
    		Nick Facciola (finder); Peacor & Dunn, 1982 Am. Min. 67 (1982), 1039
    Mineral and/or Locality
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