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Magnesiovesuvianite

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Formula:
Ca19Mg(Al10Mg2)(Si2O7)4(SiO4)10(OH)10
Colour:
Light pink
Lustre:
Silky
Hardness:
6
Specific Gravity:
3.30
Crystal System:
Tetragonal
Name:
For the magnesium analog of vesuvianite.
The Mg analogue of vesuvianite and cyprine (of Panikorovskii et al); also the Mg-(OH) analogue of manganvesuvianite.


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Classification of MagnesiovesuvianiteHide

Approved
Approval Year:
2016

Physical Properties of MagnesiovesuvianiteHide

Silky
Transparency:
Transparent
Colour:
Light pink
Hardness:
Cleavage:
None Observed
Density:
3.30(1) g/cm3 (Measured)    3.35 g/cm3 (Calculated)

Optical Data of MagnesiovesuvianiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.725() nε = 1.731(1)
Max Birefringence:
δ = 0.006
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Comments:
The Gladstone–Dale compatibility index is –0.018 (superior)

Chemical Properties of MagnesiovesuvianiteHide

Formula:
Ca19Mg(Al10Mg2)(Si2O7)4(SiO4)10(OH)10
IMA Formula:
Ca19Mg(Al10Mg2)Si18O68(OH)10

Crystallography of MagnesiovesuvianiteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
P4/n
Cell Parameters:
a = 15.5363(2) Å, c = 11.7965(3) Å
Ratio:
a:c = 1 : 0.759
Unit Cell V:
2,847.40 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.96 (23)
3.464 (22)
3.038 (33)
2.740 (100)
2.583 (21)
2.365 (94)
2.192 (19)
1.616 (25)

Type Occurrence of MagnesiovesuvianiteHide

General Appearance of Type Material:
Radiating aggregates up to 2 cm across consisting of acicular tetragonal crystals
Place of Conservation of Type Material:
collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia (catalogue
no. 59783)
Geological Setting of Type Material:
rodingtonite
Associated Minerals at Type Locality:
Reference:
Panikorovskii, T.L., Shilovskikh, V.V., Avdontseva, E.Y., Zolotarev, A.A., Karpenko, V.Y., Mazur, A.S., Yakovenchuk, V.N., Krivovichev, S.V., Bazai, A.V., Krivovichev, S.V., Pekov, I.V. (2017): Magnesiovesuvianite, Ca19Mg(Al,Mg)12Si18O69(OH)9, a new vesuvianite-group mineral. Journal of Geosciences, 62, 25-36.

Synonyms of MagnesiovesuvianiteHide

Relationship of Magnesiovesuvianite to other SpeciesHide

Other Members of this group:
AlumovesuvianiteCa19Al(Al10Mg2)Si18O69(OH)9Tet. 4/m : P4/n
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
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

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 MagnesiovesuvianiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Panikorovskii, T.L., Shilovskikh, V.V., Avdontseva, E.Y., Zolotarev, A.A., Karpenko, V.Y., Mazur, A.S., Yakovenchuk, V.N., Krivovichev, S.V., Pekov, I.V. (2016): Magnesiovesuvianite, IMA 2015-103. CNMNC Newsletter No. 30, April 2016, page 409; Mineralogical Magazine: 80: 407–413.
Panikorovskii, T.L., Shilovskikh, V.V., Avdontseva, E.Y., Zolotarev, A.A., Karpenko, V.Y., Mazur, A.S., Yakovenchuk, V.N., Krivovichev, S.V., Bazai, A.V., Krivovichev, S.V., Pekov, I.V. (2017): Magnesiovesuvianite, Ca19Mg(Al,Mg)12Si18O69(OH)9, a new vesuvianite-group mineral. Journal of Geosciences, 62, 25-36.

Internet Links for MagnesiovesuvianiteHide

Localities for MagnesiovesuvianiteHide

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.
Italy
 
  • Liguria
    • La Spezia Province
      • Vara Valley
        • Borghetto Vara
analysed by Dr. Anthony Kampf, Natural History Museum of Los Angeles County, USA
Republic of Macedonia (TL)
 
  • Lipkovo
    • Lojane
Panikorovskii, T.L., Shilovskikh, V.V., Avdontseva, E.Y., Zolotarev, A.A., Karpenko, V.Y., Mazur, A.S., Yakovenchuk, V.N., Krivovichev, S.V., Pekov, I.V. (2016): Magnesiovesuvianite, IMA 2015-103. CNMNC Newsletter No. 30, April 2016, page 409; Mineralogical Magazine: 80: 407–413; Panikorovskii, T.L., Shilovskikh, V.V., Avdontseva, E.Y., Zolotarev, A.A., Karpenko, V.Y., Mazur, A.S., Yakovenchuk, V.N., Krivovichev, S.V., Bazai, A.V., Krivovichev, S.V., Pekov, I.V. (2017): Magnesiovesuvianite, Ca19Mg(Al,Mg)12Si18O69(OH)9, a new vesuvianite-group mineral. Journal of Geosciences, 62, 25-36.
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