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Alumovesuvianite

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Formula:
Ca19Al(Al10Mg2)Si18O69(OH)9
Colour:
Colorless
Hardness:
Specific Gravity:
3.31 - 3.36
Crystal System:
Tetragonal
Name:
The name alumovesuvianite is given to highlight the species-defining role of Al.
A member of the vesuvianite group with Al3+ as a dominant cation in the Y1 site.


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Classification of AlumovesuvianiteHide

Approved
Approval Year:
2016
First Published:
2017

Physical Properties of AlumovesuvianiteHide

Transparency:
Transparent
Colour:
Colorless
Hardness:
6½ on Mohs scale
Density:
3.31 - 3.36 g/cm3 (Measured)    

Optical Data of AlumovesuvianiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.725() nε = 1.722(2)
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of AlumovesuvianiteHide

Formula:
Ca19Al(Al10Mg2)Si18O69(OH)9

Crystallography of AlumovesuvianiteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
P4/n
Setting:
P4/n
Cell Parameters:
a = 15.5103(2) Å, c = 11.8096(1) Å
Ratio:
a:c = 1 : 0.761
Unit Cell V:
2868.3 ų
Z:
2
Morphology:
Prismatic tetragonal crystals. Dominant crystal forms are {100}, {110}, {210}, {111}, {101} and {001}.
Comment:
P4/n

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.969(22)
2.761(100)
2.612(61)
2.593(25)
1.766(20)
1.667(10)
1.625(21)
1.344(22)

Type Occurrence of AlumovesuvianiteHide

General Appearance of Type Material:
As prismatic tetragonal crystals up to 4 × 4 × 6 mm3 in size encrusting walls of cavities in a granular diopside.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration numbers 4829/1 (holotype) and 4829/2 (cotype)
Empirical Formula of Type Material:
Ca19.00(Al0.92Fe3+0.081.00(Al9.83Mg1.80Mn3+0.2511.88Si17.98O69.16(OH)8.44
Chemical Analysis of Type Material:
SiO237.1 %
Al2O318.8 %
CaO36.6 %
MgO2.48 %
Mn2O30.67 %
Fe2O30.22 %
H2O2.61 %
Total:98.48 %
Geological Setting of Type Material:
In the rodingite zone at the contact of a gabbroid rock with host serpentinite.
Associated Minerals at Type Locality:
Reference:
Panikorovskii, T.L., Chukanov, N.V., Aksenov, S.M., Mazur, A.S., Avdontseva, E.Yu., Shilovskikh, V.V., Krivovichev, S.V. (2017): Alumovesuvianite, Ca19Al(Al,Mg)12Si18O69(OH)9, a new vesuvianite-group member from the Jeffrey mine, asbestos, Estrie region, Québec, Canada. Mineralogy and Petrology: 111: 833–842.

Synonyms of AlumovesuvianiteHide

Relationship of Alumovesuvianite to other SpeciesHide

Other Members of this group:
CyprineCa19Cu2+(Al10Mg2)Si18O68(OH)10Tet. 4/m : P4/n
FluorvesuvianiteCa19(Al,Mg,Fe2+)13(Si2O7)4(SiO4)10O(F,OH)9Tet. 4/mmm (4/m 2/m 2/m)
HongheiteCa19Fe2+Al4(Fe3+,Mg,Al)8(◻,B)4BSi18O69(O,OH)9Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
MagnesiovesuvianiteCa19Mg(Al10Mg2)(Si2O7)4(SiO4)10(OH)10Tet. 4/m : P4/n
ManganvesuvianiteCa19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2(Si2O7)4(SiO4)10O(OH)9Tet. 4/m : P4/n
Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
WiluiteCa19(Al,Mg)13(B,☐,Al)5(Si2O7)4(SiO4)10(O,OH)10Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc

Other InformationHide

IR Spectrum:
The most intense IR absorption bands lie in the ranges 412–609, 897–1024, and 3051–3671 cm−1.
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 AlumovesuvianiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Panikorovskii, T.L., Chukanov, N. V., Aksenov, S.M., Mazur, A.S., Avdontseva, E.Y. and Shilovskikh, V.V. (2016): Alumovesuvianite, IMA 2016-014. CNMNC Newsletter No. 32, August 2016, page 916; Mineralogical Magazine, 80: 915–922.
Panikorovskii, T.L., Chukanov, N.V., Aksenov, S.M., Mazur, A.S., Avdontseva, E.Yu., Shilovskikh, V.V., Krivovichev, S.V. (2017): Alumovesuvianite, Ca19Al(Al,Mg)12Si18O69(OH)9, a new vesuvianite-group member from the Jeffrey mine, asbestos, Estrie region, Québec, Canada. Mineralogy and Petrology: 111: 833–842.

Internet Links for AlumovesuvianiteHide

Localities for AlumovesuvianiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada (TL)
 
  • Québec
    • Estrie
      • Les Sources RCM
        • Asbestos
Panikorovskii, T.L., Chukanov, N. V., Aksenov, S.M., Mazur, A.S., Avdontseva, E.Y. and Shilovskikh, V.V. (2016): Alumovesuvianite, IMA 2016-014. CNMNC Newsletter No. 32, August 2016, page 916; Mineralogical Magazine, 80: 915–922.; Panikorovskii, T.L., Chukanov, N.V., Aksenov, S.M., Mazur, A.S., Avdontseva, E.Yu., Shilovskikh, V.V., Krivovichev, S.V. (2017): Alumovesuvianite, Ca19Al(Al,Mg)12Si18O69(OH)9, a new vesuvianite-group member from the Jeffrey mine, asbestos, Estrie region, Québec, Canada. Mineralogy and Petrology: 111: 833–842.
Italy
 
  • Aosta Valley
    • Châtillon
Tanaka, T., Akizuki, M., Kudoh, Y. (2002): Optical properties and crystal structure of triclinic growth sectors in vesuvianite, Mineralogical Magazine, Vol. 66(2) (April 2002), pp. 261-274
Mineral and/or Locality  
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