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Percleveite-(Ce)

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Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden
© B. Otter

Show Percleveite-(Ce) Photos (3)



Formula:
(Ce,La,Nd)
 
2
Si
 
2
O
 
7
System:TetragonalColour:yellowish grey, white
Hardness:6
Name:Honouring Per Theodor Cleve (1840-1905), professor of chemistry in the University of Uppsala, Sweden, and discoverer of the elements Holmium and Thulium
This page provides mineralogical data about Percleveite-(Ce).

Classification of Percleveite-(Ce)

IMA status:Approved 2002
Strunz 8th edition ID:8/C.01-45
Nickel-Strunz 10th (pending) edition ID:9.BC.35

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
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Type Occurrence of Percleveite-(Ce)

Type Locality:Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden
Associated Minerals at type locality:
QuartzMagnetiteChalcopyriteCerite-(Ce)Bastnäsite-(Ce)

Physical Properties of Percleveite-(Ce)

Lustre:Resinous, Greasy
Diaphaneity (Transparency):Transparent
Colour:yellowish grey, white
Streak:white
Hardness (Mohs):6
Tenacity:Brittle
Cleavage:Poor/Indistinct
along {001}
Density (measured):5.21 g/cm3

Crystallography of Percleveite-(Ce)

Crystal System:Tetragonal
Class (H-M):4 - Pyramidal
Cell Parameters:a = 6.78Å, c = 24.69Å
Ratio:a:c = 1 : 3.642
Unit Cell Volume:V 1,134.96 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
3.08 (100)
3.12 (25)
3.13 (25)
3.27 (30)

Chemical Properties of Percleveite-(Ce)

Formula:
(Ce,La,Nd)
 
2
Si
 
2
O
 
7
All elements listed in formula:Ce, La, Nd, O, Si

Relationship of Percleveite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.BC.05Gittinsite
CaZrSi
 
2
O
 
7
9.BC.05Keiviite-(Y)
(Y,Yb)
 
2
[Si
 
2
O
 
7
]
9.BC.05Keiviite-(Yb)
(Yb,Y)
 
2
Si
 
2
O
 
7
9.BC.05Thortveitite
(Sc,Y)
 
2
Si
 
2
O
 
7
9.BC.05Yttrialite-(Y)
(Y,Th)
 
2
Si
 
2
O
 
7
9.BC.10Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
9.BC.10Khibinskite
K
 
2
ZrSi
 
2
O
 
7
9.BC.10Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
9.BC.15Rankinite
Ca
 
3
Si
 
2
O
 
7
9.BC.20Barysilite
Pb
 
8
Mn
2+
 
[Si
 
2
O
 
7
]
 
3
9.BC.25Edgarbaileyite
(Hg-Hg)
 
3
Si
 
2
O
 
7
9.BC.30Kristiansenite
Ca
 
2
ScSn(Si
 
2
O
 
7
)(Si
 
2
O
 
6
OH)

Other Names for Percleveite-(Ce)

Synonyms:
IMA2002-023
Other Languages:
German:Percleveit-(Ce)
Russian:Перклевеит-(Ce)

Other Information

Fluorescence in UV light:none
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 Percleveite-(Ce)

Reference List:

- +
D Holtstam et al. (2003): European Journal of Mineralogy: 15: 725-731.

Internet Links for Percleveite-(Ce)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Percleveite-(Ce)

    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.
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
        • Khaldzan Buragtag massif
          • Mount Ulyn Khuren
    		P.M. Kartashov data
    Sweden
     
    • Västmanland
      • Skinnskatteberg
        • Riddarhyttan
    		Holtstam, D., Norrestam, R. and Andersson, U. B. (2003): Percleveite-(Ce) - a new lanthanide disilicate mineral from Bastnäs, Skinnskatteberg, Sweden. European Journal of Mineralogy, 15, 725-731; Lapis 28(10), 60 (2003)
    USA
     
    • New York
      • St. Lawrence Co.
        • West Pierrepont
    		Steven C. Chamberlain and David G. Bailey (2012) Rare earth minerals in fracture mineralization in northern New York. Mineral News, 28, #7, 1-5.
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