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Decrespignyite-(Y)

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Formula:
Cu(Y,REE)
 
4
(CO
 
3
)
 
4
(OH)
 
5
Cl · 2H
 
2
O
Colour:Bright royal blue to ...
Name:Honouring Robert James Champion de Crespigny (b. 1950), Chairman of Normandy Mining Ltd. and Chairman of the South Australian Museum, for his contributions to Australian education.
This page provides mineralogical data about Decrespignyite-(Y).

Classification of Decrespignyite-(Y)

IMA status:Approved
Nickel-Strunz 10th (pending) edition ID:5.CC.35

5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
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Type Occurrence of Decrespignyite-(Y)

Type Locality:Paratoo copper mine, Yunta, Olary Province, South Australia, Australia
General Appearance of Type Material:Blue crusts, coatings and fillings in thin fissures. Crusts and spherulitic aggregates are composed of individual tiny pseudohexagonal, often curved platelets.

Physical Properties of Decrespignyite-(Y)

Colour:Bright royal blue to pale blue

Chemical Properties of Decrespignyite-(Y)

Formula:
Cu(Y,REE)
 
4
(CO
 
3
)
 
4
(OH)
 
5
Cl · 2H
 
2
O
Essential elements:C, Cl, Cu, H, O, Y
All elements listed in formula:C, Cl, Cu, H, O, Y

Relationship of Decrespignyite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.CC.05Donnayite-(Y)
NaCaSr
 
3
Y(CO
 
3
)
 
6
· 3H
 
2
O
5.CC.05Ewaldite
Ba(Ca,Y,Na,K)(CO
 
3
)
 
2
5.CC.05Mckelveyite-(Nd)
(Ba,Sr)(Nd,Ce,La)(CO
 
3
)
 
2
· 4-10H
 
2
O
5.CC.05Mckelveyite-(Y)
NaCaBa
 
3
Y(CO
 
3
)
 
6
· 3H
 
2
O
5.CC.05Weloganite
Na
 
2
Sr
 
3
Zr(CO
 
3
)
 
6
· 3H
 
2
O
5.CC.10Tengerite-(Y)
Y
 
2
(CO
 
3
)
 
3
· 2-3H
 
2
O
5.CC.15Kimuraite-(Y)
Ca(Y,Nd)
 
2
(CO
 
3
)
 
4
· 6H
 
2
O
5.CC.15Lokkaite-(Y)
Ca(Y,Gd,Nd,Dy)
 
4
(CO
 
3
)
 
7
· 9H
 
2
O
5.CC.20Shomiokite-(Y)
Na
 
3
Y[CO
 
3
]
 
3
· 3H
 
2
O
5.CC.25Calkinsite-(Ce)
(Ce,La)
 
2
(CO
 
3
)
 
3
· 4H
 
2
O
5.CC.25Lanthanite-(Ce)
(Ce,La,Nd)
 
2
(CO
 
3
)
 
3
· 8H
 
2
O
5.CC.25Lanthanite-(La)
(La,Ce)
 
2
(CO
 
3
)
 
3
· 8H
 
2
O
5.CC.25Lanthanite-(Nd)
(Nd,La)
 
2
(CO
 
3
)
 
3
· 8H
 
2
O
5.CC.30Adamsite-(Y)
NaY[CO
 
3
]
 
2
· 6H
 
2
O
5.CC.40Galgenbergite-(Ce)
Ca(Ce,La,Nd)
 
2
(CO
 
3
)
 
4
· H
 
2
O

Other Names for Decrespignyite-(Y)

Synonyms:
Decrespignyit-(Y)IMA2001-027
Other Languages:

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 Decrespignyite-(Y)

Reference List:

- +
K. Wallwork, U. Kolitsch, A. Pring and L. Nasdala (2002) Decrespignyite-(Y), a new copper yttrium rare earth carbonate chloride hydrate from Paratoo, South Australia. Mineralogical Magazine: 66, 181-188.

Internet Links for Decrespignyite-(Y)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Decrespignyite-(Y) details from Handbook of Mineralogy (PDF)
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  • Rare and Unusual minerals at Mineralogical Research Company
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  • Localities for Decrespignyite-(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.
    (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
     
    • South Australia
      • Olary Province
        • Yunta
    K. Wallwork, U. Kolitsch, A. Pring and L. Nasdala (2002): Decrespignyite-(Y), a new copper yttrium rare earth carbonate chloride hydrate from Paratoo, South Australia. Mineral. Mag. 66, 181-188.
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