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Mottanaite-(Ce)

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Big Photo

Mt Cavalluccio, Campagnano di Roma, Sacrofano Caldera, Rome Province, Latium, Italy
© mslama

Show Mottanaite-(Ce) Photos (12)



Formula:
Ca
 
4
(CeCa)AlBe
 
2
(Si
 
4
B
 
4
O
 
22
)O
 
2
System:MonoclinicColour:Brown
Lustre:Vitreous
This page provides mineralogical data about Mottanaite-(Ce).

Classification of Mottanaite-(Ce)

IMA status:Approved 2001
Nickel-Strunz 10th (pending) edition ID:9.DK.20

9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains
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Type Occurrence of Mottanaite-(Ce)

Type Locality:Mt Cavalluccio, Campagnano di Roma, Sacrofano Caldera, Rome Province, Latium, Italy

Physical Properties of Mottanaite-(Ce)

Lustre:Vitreous
Colour:Brown

Crystallography of Mottanaite-(Ce)

Crystal System:Monoclinic

Optical Data of Mottanaite-(Ce)

Type:Biaxial (-)
RI values: nα = 1.680 nβ = 1.694 nγ = 1.708
Maximum Birefringence:δ = 0.028

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

Chemical Properties of Mottanaite-(Ce)

Formula:
Ca
 
4
(CeCa)AlBe
 
2
(Si
 
4
B
 
4
O
 
22
)O
 
2
Essential elements:Al, B, Be, Ca, Ce, O, Si
All elements listed in formula:Al, B, Be, Ca, Ce, O, Si

Relationship of Mottanaite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DK.05Babingtonite
Ca
 
2
(Fe,Mn)FeSi
 
5
O
 
14
(OH)
9.DK.05Lithiomarsturite
LiCa
 
2
Mn
 
2
Si
 
5
O
 
14
(OH)
9.DK.05Manganbabingtonite
Ca
 
2
(Mn,Fe)FeSi
 
5
O
 
14
(OH)
9.DK.05Marsturite
NaCaMn
 
3
Si
 
5
O
 
14
(OH)
9.DK.05Nambulite
(Li,Na)Mn
 
4
Si
 
5
O
 
14
(OH)
9.DK.05Natronambulite
(Na,Li)(Mn,Ca)
 
4
Si
 
5
O
 
14
OH
9.DK.05Rhodonite
MnSiO
 
3
9.DK.05Scandiobabingtonite
Ca
 
2
(Fe
2+
 
,Mn)ScSi
 
5
O
 
14
(OH)
9.DK.05Fowlerite
9.DK.10Santaclaraite
CaMn
 
4
[Si
 
5
O
 
14
OH](OH) · H
 
2
O
9.DK.15Saneroite
Na
 
2
(Mn,Mn)
 
10
Si
 
11
VO
 
34
(OH)
 
4
9.DK.20Hellandite-(Y)
(Ca,Y)
 
6
(Al,Fe
3+
 
)Si
 
4
B
 
4
O
 
20
(OH)
 
4
9.DK.20Tadzhikite-(Ce)
(Ca,Ce)
 
4
(Ce,Y)
 
2
(Ti
4+
 
,Fe
3+
 
,Al)[B
 
4
Si
 
4
O
 
22
](OH)
 
2
9.DK.20Ciprianiite
Ca
 
4
[(Th,U)(REE)]Al◻
 
2
(Si
 
4
B
 
4
O
 
22
)(OH,F)
 
2
9.DK.20Hellandite-(Ce)
(Ca,Ce)
 
6
(Al,Fe
3+
 
)Si
 
4
B
 
4
O
 
20
(OH)
 
4

Other Names for Mottanaite-(Ce)

Synonyms:
IMA2001-020
Other Languages:
German:Mottanait-(Ce)
Russian:Моттанаит-(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 Mottanaite-(Ce)

Reference List:

- +
American Mineralogist (2002): 87: 739-744, 745-752.

Internet Links for Mottanaite-(Ce)

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    • Localities for Mottanaite-(Ce)

    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.
    Italy
     
    • Latium
      • Rome Province
        • Sacrofano Caldera
          • Campagnano di Roma
    		American Mineralogist (2002): 87: 739-744, 745-752.
      • Viterbo Province
        • Vico Lake
          • Vetralla
    		M.E. Ciriotti (2006) EPMA+SIMS probed [a mottanaite-(Ce) with Al0.5Fe3+0.5]
    Mineral and/or Locality
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