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Abenakiite-(Ce)

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Formula:
Na
 
26
Ce
 
6
(Si
 
6
O
 
18
)(PO
 
4
)
 
6
(CO
 
3
)
 
6
(SO
 
2
)O
System:HexagonalColour:Pale brown
Lustre:VitreousHardness:4 - 5
Name:
Named after the Abenaki, the indigenous people of the discovery area.
This page provides mineralogical data about Abenakiite-(Ce).

Classification of Abenakiite-(Ce)

IMA status:Approved 1991
Strunz 8th edition ID:8/E.17-05
Strunz 9th edition ID:9.CK.10
Nickel-Strunz 10th (pending) edition ID:9.CK.10

9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions
Dana 7th edition ID:61.4.1.1
Dana 8th edition ID:61.4.1.1

61 : CYCLOSILICATES Six-Membered Rings
4 : Six-Membered Rings with other anions
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Type Occurrence of Abenakiite-(Ce)

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
Geological Setting of type material:in a xenolith of Sodalite syenite
Associated Minerals at type locality:
PolylithioniteManganoneptuniteEudialyteAegirine

Physical Properties of Abenakiite-(Ce)

Lustre:Vitreous
Colour:Pale brown
Streak: White
Hardness (Mohs):4 - 5
Cleavage:Poor/Indistinct

Crystallography of Abenakiite-(Ce)

Crystal System:Hexagonal

Optical Data of Abenakiite-(Ce)

Type:Uniaxial (-)
RI values: nω = 1.589 nε = 1.586
Maximum Birefringence:δ = 0.003

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

Chemical Properties of Abenakiite-(Ce)

Formula:
Na
 
26
Ce
 
6
(Si
 
6
O
 
18
)(PO
 
4
)
 
6
(CO
 
3
)
 
6
(SO
 
2
)O
Essential elements:C, Ce, Na, O, P, S, Si
All elements listed in formula:C, Ce, Na, O, P, S, Si

Relationship of Abenakiite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.CK.Fluor-schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
9.CK.05Fluor-buergerite
Na(Fe
3+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
F
9.CK.05Chromium-dravite
Na(Mg
 
3
)Cr
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Foitite
(□,Na)(Fe
2+
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
OH
9.CK.05Liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Olenite
Na(Al
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
(OH)
9.CK.05Povondraite
NaFe
3+
3
(Mg
 
2
Fe
3+
4
)(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Magnesiofoitite
(□,Na)(Mg
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Oxy-vanadium-dravite
Na(V)
 
3
(V
 
4
Mg
 
2
)Si
 
6
O
 
18
(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Oxy-dravite
Na(MgAl
 
2
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Oxy-rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Chromo-alumino-povondraite
Na(Cr
 
3
)(Al
 
4
Mg
 
2
)(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Fluor-dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
9.CK.05Fluor-uvite
Ca(Mg
 
3
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
9.CK.15Scawtite
Ca
 
7
(Si
 
3
O
 
9
)
 
2
CO
 
3
 · 2H
 
2
O
9.CK.20Steenstrupine-(Ce)
Na
 
14
Mn
2+
2
(Fe
3+
 
,Mn
3+
 
)
 
2
Ce
 
6
(Zr,Th)(Si
 
6
O
 
18
)
 
2
(PO
 
4
)
 
6
(HPO
 
4
)(OH)
 
2
 · 2H
 
2
O
9.CK.20Thorosteenstrupine
CaMnThSi
 
4
O
 
11
(OH)F · 6H
 
2
O

Other Names for Abenakiite-(Ce)

Synonyms:
IMA1991-054
Other Languages:
Czech:Abenakiit-(Ce)
German:Abenakiit-(Ce)
Italian:Abenakiite-(Ce)
Latvian:Abenakijīts-(Ce)
Portuguese:Abenakiíte-(Ce)
Russian:Абенакиит-(Ce)

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 Abenakiite-(Ce)

Reference List:

- +
McDONALD, A.M., CHAO, G.Y., and GRICE, J.D. (1994) Abenakiite (Ce), a new silicophosphate carbonate mineral from Mont Saint Hilaire, Quebec: description and structure determenation. Canadian Mineralogist, 32, 843 854.

Internet Links for Abenakiite-(Ce)

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    • Localities for Abenakiite-(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.
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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.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		McDonald, A.M., Chao, G.Y. and Grice, J.D. (1994), Abenakiite-(Ce), a new silicophosphate carbonate mineral from Mont Saint-Hilaire, Quebec: Description and structure determination. Canadian Mineralogist, 32, 843-854.
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