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Petersite-(Y)

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

Show Petersite-(Y) Photos (5)
Formula:
(Y,Ce,Nd)Cu
 
6
[(OH)
 
6
|(PO
 
4
)
 
3
] · 3H
 
2
O
System:HexagonalColour:yellowish green
Hardness:3 - 4
This page provides mineralogical data about Petersite-(Y).

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

Relationship of Petersite-(Y) to other Species

Related to:
  • Mixite Group
    • Related Minerals - Nickel-Strunz Grouping):
    8.DL.05Foggite
    CaAl[(OH)
     
    2
    		|PO
     
    4
    		] · H
     
    2
    		O
    8.DL.10Cyrilovite
    NaFe
    3+
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    8.DL.10Millisite
    (Na,K)CaAl
     
    6
    		[(OH)
     
    9
    		|(PO
     
    4
    		)
     
    4
    		] · 3H
     
    2
    		O
    8.DL.10Wardite
    NaAl
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    8.DL.15Agardite-(Nd)
    (Nd,La,Ce)Cu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
    8.DL.15Agardite-(Y)
    (Y,Ca)Cu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		,HAsO
     
    4
    		)|(AsO
     
    4
    		)
     
    2
    		] · 3H
     
    2
    		O
    8.DL.15Agardite-(Ce)
    CeCu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
    8.DL.15Agardite-(La)
    (La,Ce)Cu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
    8.DL.15Goudeyite
    (Al,Y)Cu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
    8.DL.15Mixite
    BiCu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
    8.DL.15Zálesíite
    (Ca,Y)Cu
     
    6
    		[(OH)
     
    6
    		|(HAsO
     
    4
    		,AsO
     
    4
    		)|(AsO
     
    4
    		)
     
    2
    		] · 3H
     
    2
    		O
    8.DL.15Plumboagardite
    (Pb,REE,Ca)Cu
     
    6
    		[(OH)
     
    6
    		|(HAsO
     
    4
    		,AsO
     
    4
    		)|(AsO
     
    4
    		)
     
    2
    		] · 3H
     
    2
    		O
    8.DL.15Calciopetersite
    CaCu
     
    6
    		[(OH)
     
    6
    		|HPO
     
    4
    		|(PO
     
    4
    		)
     
    2
    		] · 3H
     
    2
    		O
    8.DL.20Cheremnykhite
    Pb
     
    3
    		Zn
     
    3
    		TeO
     
    6
    		(VO
     
    4
    		)
     
    2
    8.DL.20Dugganite
    Pb
     
    3
    		Zn
     
    3
    		(Te
    6+
     
    		O
     
    6
    		)(AsO
     
    4
    		)
     
    2
    8.DL.20Kuksite
    Pb
     
    3
    		Zn
     
    3
    		TeO
     
    6
    		(PO
     
    4
    		)
     
    2
    8.DL.20Wallkilldellite-Mn
    Ca
     
    2
    		Mn
    2+
    3
    		[(OH)
     
    2
    		|AsO
     
    4
    		]
     
    2
    		 · 9H
     
    2
    		O
    8.DL.20Wallkilldellite-(Fe)
    (Ca,Cu)
     
    4
    		Fe
    2+
    6
    		[(OH,O)
     
    2
    		|(AsO
     
    4
    		,SiO
     
    4
    		)]
     
    4
    		 · 18H
     
    2
    		O
    8.DL.20Wallkilldellite
    Related Minerals - Hey's Index Grouping:
    19.4.1Monetite
    CaHPO
     
    4
    19.4.2Apatite-(CaOH)
    Ca
     
    5
    		[OH|(PO
     
    4
    		)
     
    3
    		]
    19.4.3Brushite
    CaHPO
     
    4
    		·2H
     
    2
    		O
    19.4.4Isoclasite
    Ca
     
    2
    		[OH|PO
     
    4
    		] · 2H
     
    2
    		O
    19.4.5Buchwaldite
    NaCaPO
     
    4
    19.4.6Canaphite
    CaNa
     
    2
    		[HPO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.4.7Mundrabillaite
    (NH
     
    4
    		)
     
    2
    		Ca(HPO
     
    4
    		)
     
    2
    		·H
     
    2
    		O
    19.4.8Whitlockite
    Ca
     
    9
    		Mg[PO
     
    3
    		OH][PO
     
    4
    		]
     
    6
    19.4.9Brianite
    Na
     
    2
    		CaMg[PO
     
    4
    		]
     
    2

    Other Names for Petersite-(Y)

    Synonyms:
    IMA1981-064Petersite
    German names:
    Petersit
    Spanish names:
    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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  • Look for Petersite-(Y) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Petersite-(Y) in the Natural History Museum (London) online catalogue
  • Petersite-(Y) details from Handbook of Mineralogy (PDF)
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    Localities for Petersite-(Y)

    Hide Locality List
    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.
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    (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
    		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
          • 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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