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Mottanaite-(Ce)

Big Photo

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

Show Mottanaite-(Ce) Photos (8)
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, Sacrofano Caldera, Sacrofano, Campagnano di Roma, 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:
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)

    (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
        • Campagnano di Roma
          • Sacrofano
            • Sacrofano Caldera
    		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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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 7th Nov 2009 02:00:22