Log In
Aluminocerite-(CeCa)
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Aluminocerite-(CeCa)
Formula:
(Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4(OH)3
formerly given as:
(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3
(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3
Colour:
Pale pink to reddish pink
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
4.675 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Al dominant cerite-(Ce)
Co-Type Localities:
Isostructural with:
Aluminium-dominant analogue of Cerite-(Ce) and Cerite-(La). Isostructural with phosphates of Whitlockite group.
Unique Identifiers
Mindat ID:
38991
Long-form identifier:
mindat:1:1:38991:2
IMA Classification of Aluminocerite-(CeCa)
Approved
IMA Formula:
(Ce3+6Ca3)◻Al(SiO4)3(SiO3OH)4(OH)3
Approval year:
2007
First published:
2009
Approval history:
name & formula changes: IMA proposals of May 2023
Classification of Aluminocerite-(CeCa)
9.AG.20
9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Acrt-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Aluminocerite-(CeCa)
Vitreous
Transparency:
Translucent
Colour:
Pale pink to reddish pink
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
None observed
Density:
4.675 g/cm3 (Calculated)
Optical Data of Aluminocerite-(CeCa)
Type:
Uniaxial (+)
RI values:
nω = 1.810 - 1.816 nε = 1.812 - 1.816
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized uniaxial interference figure - the conoscopic
(convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis
centred and vertical. The coloured rings are isochromatics, computed with the
same physics as the Michel-Lévy bar above; the dark cross is the isogyre.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
Pleochroism:
Non-pleochroic
Chemistry of Aluminocerite-(CeCa)
Mindat Formula:
(Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4(OH)3
formerly given as:
(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3
formerly given as:
(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3
Element Weights:
Crystallography of Aluminocerite-(CeCa)
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3c
Cell Parameters:
a = 10.645 Å, c = 38.019 Å
Ratio:
a:c = 1 : 3.572
Unit Cell V:
3,730.98 ų (Calculated from Unit Cell)
Morphology:
Pseudo-octahedral to rhombohedral crystals. Dominant forms rhombohedron {1011} and pinacoid {0001}.
Twinning:
None observed
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0004896 | Aluminocerite-(CeCa) | Nestola F, Guastoni A, Camara F, Secco L, Dal Negro A, Pedron D, Beran A (2009) Aluminocerite-Ce: A new species from Baveno, Italy: Descriptions and crystal-structure determination American Mineralogist 94 487-493 | ![]() | 2009 | Ratti quarry, Baveno, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.405 Å | (27) |
| 3.250 Å | (26) |
| 2.914 Å | (100) |
| 2.647 Å | (58) |
| 2.198 Å | (40) |
| 1.923 Å | (34) |
| 1.750 Å | (46) |
| 1.732 Å | (34) |
Locality:
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks | |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Type Occurrence of Aluminocerite-(CeCa)
Co-Type Localities:
General Appearance of Type Material:
Holotype: Aggregates of up to 0.2 mm of pseudo-octahedral to rhombohedral crystals, flattened on the c axis. Crystals to 5-10 µm.
Cotype: Aggregates of pseudo-octahedral to rhombohedral crystals, up to 0.8 mm. Crystals to 50 µm.
Cotype: Aggregates of pseudo-octahedral to rhombohedral crystals, up to 0.8 mm. Crystals to 50 µm.
Place of Conservation of Type Material:
The Museum of Mineralogy of the University of Padova, Italy (holotype, no. MM5200, and cotype, no. MM5549)
Geological Setting of Type Material:
Millimeter-sized secondary cavities hosted in aplite-pegmatite veins and pods within pink granite. Also in in centimeter-sized miarolitic cavities in granite.
Associated Minerals at Type Locality:
Synonyms of Aluminocerite-(CeCa)
Other Language Names for Aluminocerite-(CeCa)
Dutch:Aluminoceriet-(CeCa)
French:Aluminocerite-(CeCa)
German:Aluminocerit-(CeCa)
Norwegian:Aluminoceritt-(CeCa)
Relationship of Aluminocerite-(CeCa) to other Species
Member of:
Other Members of Cerite Subgroup:
| Cerite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 | Trig. 3m : R3c |
| Ferricerite-(LaCa) | (La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3 | Trig. 3m : R3c |
Common Associates
Associations Based on Photo Data:
| 9 photos of Aluminocerite-(CeCa) associated with Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 6 photos of Aluminocerite-(CeCa) associated with Wulfenite | Pb(MoO4) |
| 6 photos of Aluminocerite-(CeCa) associated with Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| 6 photos of Aluminocerite-(CeCa) associated with Quartz | SiO2 |
| 4 photos of Aluminocerite-(CeCa) associated with Albite | Na(AlSi3O8) |
| 4 photos of Aluminocerite-(CeCa) associated with Tengerite-(Y) | Y2(CO3)3 · 2-3H2O |
| 3 photos of Aluminocerite-(CeCa) associated with Fergusonite-(Y) | YNbO4 |
| 3 photos of Aluminocerite-(CeCa) associated with Fluorite | CaF2 |
| 2 photos of Aluminocerite-(CeCa) associated with Zircon | Zr(SiO4) |
| 2 photos of Aluminocerite-(CeCa) associated with Bastnäsite-(Ce) | Ce(CO3)F |
Related Minerals - Strunz-mindat Grouping
| 9.AG. | Aluminotaipingite-(CeCa) | (Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4F3 |
| 9.AG. | 'Ivanyukite-Na-T' | Na2Ti4(SiO4)3(OH)O3 · 7H2O |
| 9.AG. | 'Ivanyukite-Na-C' | Na2Ti4(SiO4)3(OH)2O2 · 6H2O |
| 9.AG. | Edgrewite | Ca9(SiO4)4F2 |
| 9.AG.02 | Gatedalite | ZrMn2+2Mn3+4SiO12 |
| 9.AG.05 | Abswurmbachite | CuMn3+6(SiO4)O8 |
| 9.AG.05 | Neltnerite | CaMn3+6(SiO4)O8 |
| 9.AG.05 | Skogbyite | Zr(Mg2Mn3+4)SiO12 |
| 9.AG.05 | Braunite | Mn2+Mn3+6(SiO4)O8 |
| 9.AG.05 | 'Braunite-II' | Ca(Mn3+,Fe)14(SiO4)O20 |
| 9.AG.10 | Långbanite | Mn2+4Mn3+9Sb5+O16(SiO4)2 |
| 9.AG.12 | Taipingite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3[SiO3(OH)]4F3 |
| 9.AG.15 | Żabińskiite | Ca[Al0.5(Ta,Nb)0.5)]O(SiO4) |
| 9.AG.15 | Titanite | CaTiO(SiO4) |
| 9.AG.15 | Vanadomalayaite | CaVO(SiO4) |
| 9.AG.15 | Natrotitanite | (Na0.5Y0.5)TiO(SiO4) |
| 9.AG.15 | Malayaite | CaSnO(SiO4) |
| 9.AG.20 | Ferricerite-(LaCa) | (La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3 |
| 9.AG.20 | Cerite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 |
| 9.AG.20 | Nipeiite-(Ce) | Ce9Fe3+(SiO4)6[SiO3(OH)](OH)3 |
| 9.AG.25 | 'Yftisite-(Y)' | (Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6 |
| 9.AG.25 | Mieite-(Y) | Y4Ti(SiO4)2O[F,(OH)]6 |
| 9.AG.25 | Trimounsite-(Y) | Y2Ti2(SiO4)O5 |
| 9.AG.30 | Sitinakite | KNa2Ti4(SiO4)2O5(OH) · 4H2O |
| 9.AG.35 | Kittatinnyite | Ca2Mn2Mn(SiO4)2(OH)4 · 9H2O |
| 9.AG.40b | Paranatisite | Na2Ti(SiO4)O |
| 9.AG.40a | Natisite | Na2Ti(SiO4)O |
| 9.AG.45 | Törnebohmite-(Ce) | Ce2Al(SiO4)2(OH) |
| 9.AG.45 | Törnebohmite-(La) | La2Al(SiO4)2(OH) |
| 9.AG.50 | Ivanyukite-Na | Na2Ti4(SiO4)3(OH)2O2 · 6H2O |
| 9.AG.50 | Ivanyukite-K | K2Ti4(SiO4)3(OH)2O2 · 9H2O |
| 9.AG.50 | Ivanyukite-Cu | CuTi4(SiO4)3(OH)2O2 · 7H2O |
| 9.AG.50 | Kuliokite-(Y) | Y4Al(SiO4)2(OH)2F5 |
| 9.AG.50 | Hydroxyledgrewite | Ca9(SiO4)4(OH)2 |
| 9.AG.52 | Ulfanderssonite-(Ce) | (Ce15Ca)Σ16Mg2(SiO4)10(SiO3OH)(OH,F)5Cl3 |
| 9.AG.55 | Chantalite | CaAl2(SiO4)(OH)4 |
| 9.AG.60 | Vuagnatite | CaAl(SiO4)(OH) |
| 9.AG.60 | Mozartite | CaMn3+(SiO4)(OH) |
| 9.AG.65 | Hatrurite | Ca3(SiO4)O |
| 9.AG.70 | Jasmundite | Ca11(SiO4)4O2S |
| 9.AG.75 | Afwillite | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| 9.AG.80 | Bultfonteinite | Ca2(HSiO4)F · H2O |
| 9.AG.85 | Zoltaiite | BaV4+2V3+12(SiO4)2O19 |
| 9.AG.90 | Tranquillityite | (Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12 |
Fluorescence of Aluminocerite-(CeCa)
Not fluorescent
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.
Internet Links for Aluminocerite-(CeCa)
mindat.org URL:
https://www.mindat.org/min-38991.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Aluminocerite-(CeCa)
Localities for Aluminocerite-(CeCa)
Showing 10 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Italy | |
| G. Blass EDX + PXRD (M.E. Ciriotti 30.06.2010) +1 other reference |
| G. Blass EDX + PXRD (M.E. Ciriotti 30.06.2010) +1 other reference | |
| Nestola et al. (2009) |
| Nestola et al. (2009) |
Mongolia | |
| Pavel M. Kartashov (n.d.) |
Norway | |
| Husdal (2023) |
| Raade et al. (1990) +1 other reference | |
Russia | |
| A.A. Konev analytical data |
| Chakhmouradian et al. (2002) |
South Africa | |
| Atanasova et al. (2016) |
Quick NavTopAbout Aluminocerite-(CeCa)Unique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List






symbol to view information about a locality.
The
Bricco Volti - Monte Ortieul quarrying area, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy