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Gatelite-(Ce)

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Gatelite-(Ce)

Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
Gatelite-(Ce)

Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
Gatelite-(Ce)

Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
Gatelite-(Ce)

Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
Gatelite-(Ce)

Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
Gatelite-(Ce)

Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
Pierre Gatel
Formula:
CaCe3Al2(Al,Mg)(Mg,Fe2+,Al)(Si2O7)(SiO4)3(O,F)(OH,O)2
System:
Monoclinic
Colour:
colourless
Hardness:
6 - 7
Name:
For Pierre Gatel, founder president of the Association Française de Microminéralogie (AFM).
This page provides mineralogical data about Gatelite-(Ce).


Classification of Gatelite-(Ce)

IMA status:
Approved
Approval Year:
2001
Strunz 8th ed.:
8/C.24-100
Nickel-Strunz 10th (pending) ed.:
9.BG.50

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in octahedral [6] and greater coordination

Physical Properties of Gatelite-(Ce)

Diaphaneity (Transparency):
Transparent
Colour:
colourless
Hardness (Mohs):
6 - 7
Tenacity:
Brittle
Cleavage:
Distinct/Good
on {100}
Fracture:
Irregular/Uneven
Density:
4.51 g/cm3 (Calculated)

Chemical Properties of Gatelite-(Ce)

Formula:
CaCe3Al2(Al,Mg)(Mg,Fe2+,Al)(Si2O7)(SiO4)3(O,F)(OH,O)2
IMA Formula:
(Ca,Ce)4(Al,Mg,Fe)4(Si2O7)(SiO4)3(O,F,OH)3
Elements listed in formula:
Al, Ca, Ce, F, Fe, H, Mg, O, Si - search for minerals with similar chemistry
Analytical Data:
EMPA supported by single-crystal structure determination
Common Impurities:
REE,Nb
Crystallography of Gatelite-(Ce)
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b 
Cell Parameters:
a = 17.77 Å, b = 5.651 Å, c = 17.458 Å
β = 116.18°
Ratio:
a:b:c =  3.145 : 1 : 3.089
Unit Cell Volume:
V 1573.3 ų
Z:
4
X-Ray Powder Diffraction Data:
d-spacingIntensity
15.67 (87)
3.49 (50)
2.97 (100)
2.83 (44)
2.61 (56)
Type Occurrence of Gatelite-(Ce)
Type Locality:
ⓘ Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France
General Appearance of Type Material:
striated crystals, finely intergrown with minute lamellae of törnebohmite-(Ce)
Geological Setting of Type Material:
Talc deposit
Empirical Formula:
Ca1.09REE2.95Al3.06Mg0.51Fe0.32Nb0.01Si15.06O20.26(OH)1.60F0.14
Associated Minerals at Type Locality:
Törnebohmite-(Ce)TalcQuartzPyriteDolomite
Dissakisite-(Ce)Aeschynite-(Y)
Relationship of Gatelite-(Ce) to other Species
Related Minerals - Nickel-Strunz Grouping):
9.BG.XCyprineCa19Cu2+(Al10Mg2)Si18O68(OH)10
9.BG.05bAllanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
9.BG.05bAllanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
9.BG.05bAllanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
9.BG.05aClinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
9.BG.05bDissakisite-(Ce){CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)
9.BG.05Dollaseite-(Ce){CaCe}{MgAlMg}(Si2O7)(SiO4)(OH)F
9.BG.05aEpidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
9.BG.05Hancockite{CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
9.BG.05Khristovite-(Ce){CaCe}{MgAlMn2+}(Si2O7)(SiO4)(OH)F
9.BG.05Mukhinite{Ca2}{Al2V3+}(Si2O7)(SiO4)O(OH)
9.BG.05Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
9.BG.05Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
9.BG.05bManganiandrosite-(La){Mn2+La}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
9.BG.05Tawmawite{Ca2}{(Al,Fe3+,Cr)3}(Si2O7)(SiO4)O(OH)
9.BG.05Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
9.BG.05bFerriallanite-(Ce){CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
9.BG.05Niigataite{CaSr}{Al3}(Si2O7)(SiO4)O(OH)
9.BG.05Manganiandrosite-(Ce){Mn2+Ce}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
9.BG.05Dissakisite-(La){CaLa}{Al2Mg}(Si2O7)(SiO4)O(OH)
9.BG.05Vanadoandrosite-(Ce){Mn2+Ce}{V3+AlMn2+}(Si2O7)(SiO4)O(OH)
9.BG.05Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
9.BG.05Epidote-(Sr){CaSr}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
9.BG.05bAllanite-(Nd){CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
9.BG.05bFerriallanite-(La){CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
9.BG.05bÅskagenite-(Nd){Mn2+Nd}{Al2Fe3+}(Si2O7)(SiO4)O2
9.BG.10Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
9.BG.15MacfalliteCa2Mn33+(SiO4)(Si2O7)(OH)3
9.BG.15SursassiteMn22+Al3(SiO4)(Si2O7)(OH)3
9.BG.20Julgoldite-(Fe2+)Ca2Fe2+Fe23+(Si2O7)(SiO4)(OH)2 · H2O
9.BG.20OkhotskiteCa2(Mn,Mg)(Mn3+,Al,Fe3+)2(Si2O7)(SiO4)(OH)2 · H2O
9.BG.20Pumpellyite-(Fe2+)Ca2Fe2+Al2(Si2O7)(SiO4)(OH)2 · H2O
9.BG.20Pumpellyite-(Fe3+)Ca2(Fe3+,Mg)(Al,Fe3+)2(Si2O7)(SiO4)(OH,O)2 · H2O
9.BG.20Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
9.BG.20Pumpellyite-(Mn2+)Ca2Mn2+Al2(Si2O7)(SiO4)(OH)2 · H2O
9.BG.20ShuiskiteCa2MgCr2(Si2O7)(SiO4)(OH)2 · 2H2O
9.BG.20Julgoldite-(Fe3+)Ca2Fe3+Fe23+(Si2O7)(SiO4)O(OH) · H2O
9.BG.20Pumpellyite-(Al)Ca2Al3(Si2O7)(SiO4)(OH,O)2 · H2O
9.BG.20PoppiiteCa2(V3+,Fe3+,Mg)(V3+,Al)2(Si2O7)(SiO4)(OH,O)2 · H2O
9.BG.20Julgoldite-(Mg)Ca2MgFe23+(Si2O7)(SiO4)(OH)2 · H2O
9.BG.25GanomalitePb9Ca5Mn(Si2O7)4(SiO4)O
9.BG.30RustumiteCa10(Si2O7)2(SiO4)(OH)2Cl2
9.BG.35Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
9.BG.35WiluiteCa19(Al,Mg)13(B,☐,Al)5(Si2O7)4(SiO4)10(O,OH)10
9.BG.35ManganvesuvianiteCa19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2(Si2O7)4(SiO4)10O(OH)9
9.BG.35FluorvesuvianiteCa19(Al,Mg,Fe2+)13(Si2O7)4(SiO4)10O(F,OH)9
9.BG.40Vyuntspakhkite-(Y)(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7
9.BG.45DellaiteCa6Si3O11(OH)2
9.BG.55Västmanlandite-(Ce)Ce3CaMg2Al2Si2O15(OH)2F
Other Names for Gatelite-(Ce)
Synonyms:
IMA2001-050
Name in Other Languages:
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.


References for Gatelite-(Ce)
Reference List:
American Mineralogy (2003): 88: 223-228.


Internet Links for Gatelite-(Ce)
mindat.org URL:
https://www.mindat.org/min-27350.html
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    • Localities for Gatelite-(Ce)
    

    

    This 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 for a valid mineral species. (FRL) indicates first recorded locality for everything else.  ? 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.
    

    France  (TL)
     
    

    • Occitanie
    

      • Ariège
    

        • Luzenac
    
    		Am. Min. 88:223-228 (2003)
    Sweden
     
    

    • Västmanland
    

      • Norberg
    
    		Steffen Möckel probed (EDX 29/08/2005) - M.E. Ciriotti collection
    

    

    

    

    

    


    

    

    
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