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⇱ Magnesiovesuvianite: Mineral information, data and localities.

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Magnesiovesuvianite

A valid IMA mineral species
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Formula:
Ca19MgAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9
The formula is a partial simplification of the full structural formula. The large (VII-IX)-coordinated (X4)2(X3)8(X2)8(X1) sites are here combined (e.g. Ca19) and are typically filled with Ca, although other large cations such as the REE may be present. The square-pyramidal Y1 site can host a variety of M2+ and M3+ ions and is the basis for the distinction of several species. The VI-coordinated Y2 site typically is filled with Al, whereas the also VI-coordinated Y3 site may contain Al, Mg, and other cations of similar charge and size. The tetrahedral T1 site is typically vacant but may contain B (less commonly Al); the trigonal T2 site is also typically vacant but may also contain B. Some of the (SiO4) may be replaced by (H4O4), akin to the Si4+ ↔︎ 4H+ hydrogarnet substitution. Among the oxygen that are not part of the silica tetrahedra, there are eight "O11" that typically occur as OH, two "O10" that are typically O & OH or OH & OH (the latter arrangement notably when Y1 is an M2+ cation). There may also be up to three "O12" that in most vesuvianite-group minerals are absent (and are not included here), but may be present particularly when T1 is occupied.
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., 2017); also the Mg-(OH) analogue of manganvesuvianite, and Mg (or MgMg) analogue of modraite.


Unique IdentifiersHide

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Mindat ID:
47594
Long-form identifier:
mindat:1:1:47594:5

IMA Classification of MagnesiovesuvianiteHide

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Approved
IMA Formula:
Ca19Mg(Al11Mg)Si18O69(OH)9
Approval year:
2016
First published:
2017

Classification of MagnesiovesuvianiteHide

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9.BG.

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

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
MvesIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of MagnesiovesuvianiteHide

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Silky
Transparency:
Transparent
Colour:
Light pink
Hardness:
Cleavage:
None Observed
Density:
3.30(1) g/cm3 (Measured)    3.35 g/cm3 (Calculated)
Comment:
Measured by flotation in diluted Clerici solution; calculated using the empirical formula

Optical Data of MagnesiovesuvianiteHide

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Type:
Uniaxial (-)
RI values:
nω = 1.725(2) nε = 1.731(2)
Max. Birefringence:
δ = 0.006
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Pleochroism:
Not Visible
Comments:
The Gladstone–Dale compatibility index is –0.018 (superior)

Chemistry of MagnesiovesuvianiteHide

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Mindat Formula:
Ca19MgAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9

The formula is a partial simplification of the full structural formula. The large (VII-IX)-coordinated (X4)2(X3)8(X2)8(X1) sites are here combined (e.g. Ca19) and are typically filled with Ca, although other large cations such as the REE may be present. The square-pyramidal Y1 site can host a variety of M2+ and M3+ ions and is the basis for the distinction of several species. The VI-coordinated Y2 site typically is filled with Al, whereas the also VI-coordinated Y3 site may contain Al, Mg, and other cations of similar charge and size. The tetrahedral T1 site is typically vacant but may contain B (less commonly Al); the trigonal T2 site is also typically vacant but may also contain B. Some of the (SiO4) may be replaced by (H4O4), akin to the Si4+ ↔︎ 4H+ hydrogarnet substitution. Among the oxygen that are not part of the silica tetrahedra, there are eight "O11" that typically occur as OH, two "O10" that are typically O & OH or OH & OH (the latter arrangement notably when Y1 is an M2+ cation). There may also be up to three "O12" that in most vesuvianite-group minerals are absent (and are not included here), but may be present particularly when T1 is occupied.
Element Weights:
Element% weight
O43.516 %
Ca26.553 %
Si17.628 %
Al9.409 %
Mg2.543 %
H0.352 %

Calculated from ideal end-member formula.

Crystallography of MagnesiovesuvianiteHide

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Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
P4/n
Cell Parameters:
a = 15.5362(2) Å, b = 15.5362(2) Å, c = 11.7960(3) Å
Ratio:
a:b:c = 1 : 1 : 0.759
Unit Cell V:
2847.26 ų
Z:
2
Morphology:
Crystals are elongated along [001]; the dominant forms are {100} and/or {110}, both usually with striation along [001]; crystals are terminated by the {111} and {101} or {001} faces.

X-Ray Powder DiffractionHide

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

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
7 : Ultramafic igneous rocks
Stage 3b: Earth’s earliest hydrosphere>4.45
13 : Hadean serpentinization
Geological Setting:
Low temperature hydrothermal solutions poor in iron.

Type Occurrence of MagnesiovesuvianiteHide

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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:

Synonyms of MagnesiovesuvianiteHide

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Other Language Names for MagnesiovesuvianiteHide

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Relationship of Magnesiovesuvianite to other SpeciesHide

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Other Members of Vesuvianite Group:
AlumovesuvianiteCa19AlAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m : P4/n
CyprineCa19Cu2+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/m : P4/n
FluorvesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(F,OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
HongheiteCa19Fe2+Al4(Fe3+,Mg)8(◻4)B[Si2O7]4[(SiO4)10]O(OH,O)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
Manaevite-(Ce)(Ca13Ce4[H2O]2)Mg(Al3Mg)(Mg3Ti3Fe3+2)(◻4)◻[Si2O7]4[(SiO4)8(H4O4)2]O(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
ManganvesuvianiteCa19Mn3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m : P4/n
Milanriederite(Ca18[REE])Fe3+Al4(Mg4Al4)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
ModraiteCa19Fe2+Al4(Al6Fe2+2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
WiluiteCa19MgAl4(Al,Mg)8(B,◻)4◻[Si2O7]4[(SiO4)10]O(O,OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc

Related Minerals - Strunz-mindat GroupingHide

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9.BG.AlumovesuvianiteCa19AlAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m : P4/n
9.BG.Alnaperbøeite-(Ce)Ca(Ce2.5Na0.5)(AlAl2Al)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/m
9.BG.Zilbermintsite-(La)(CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m : P21/m
9.BG.Heflikite(CaCa)(AlAlSc)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.Zoisite-(Pb)(CaPb)(AlAlAl)O[Si2O7][SiO4](OH)Orth. mmm(2/m2/m2/m) : Pnma
9.BG.Shuiskite-(Cr)Ca2Cr3+Cr3+2[Si2O6OH][SiO4](OH)2OMon. 2/m : B2/m
9.BG.Radekškodaite Group
9.BG.05Dissakisite-(La)(CaLa)(AlAlMg)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Manganiandrosite-(Ce)(Mn2+Ce)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bDissakisite-(Ce)(CaCe)(AlAlMg)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Sm)(CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aHancockite(CaPb)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Dollaseite-(Ce)(CaCe)(MgAlMg)F[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05a v'Unnamed (Ga-analogue of Epidote)'(CaCa)(AlAlGa3+)O[Si2O7][SiO4](OH)
9.BG.05aClinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aEpidote-(Sr)(CaSr)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Vanadoandrosite-(Ce)(Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bVanadoallanite-(La)(CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05b'Unnamed (Mg-analogue of Ferriallanite-(Ce))'(CaCe)(Fe3+AlMg)O[Si2O7][SiO4](OH)
9.BG.05bFerriallanite-(La)(CaLa)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Uedaite-(Ce)(Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Tweddillite(CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bÅskagenite-(Nd)(Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]OMon. 2/m : P21/m
9.BG.05Piemontite-(Pb)(CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(La)(CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Y)(CaY)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aPiemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAkasakaite-(Ce)(CaCe)(AlAlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bManganiandrosite-(La)(Mn2+La)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAkasakaite-(La)(CaLa)(AlAlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bVanadoakasakaite-(La)(CaLa)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Khristovite-(Ce)(CaCe)(MgAlMn2+)F[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bFerriakasakaite-(La)(CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Ferriandrosite-(La)(Mn2+La)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05'Androsite-(Ce)'(Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH)
9.BG.05Vielleaureite-(Ce)Mn2+Ce(MgAlMn2+)(Si2O7)(SiO4)F(OH)Mon. 2/m : P21/m
9.BG.05Ferriandrosite-(Ce)(Mn2+Ce)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bFerriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05b'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))'(CaCe)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)
9.BG.05bVanadoakasakaite-(Ce)(CaCe)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Piemontite-(Sr)(CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Niigataite(CaSr)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bFerriakasakaite-(Ce)(CaCe)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Nd)(CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05b'UM1989-32-SiO:AlCaFeHREE'(Ca0.5◻0.5REE)(AlAlFe3+)O[Si2O7][SiO4](OH)
9.BG.05aMukhinite(CaCa)(AlAlV3+)O[Si2O7][SiO4](OH)Mon.
9.BG.05bManganiakasakaite-(La)(CaLa)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.10Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Orth. mmm(2/m2/m2/m) : Pnma
9.BG.15MacfalliteCa2Mn3+3(SiO4)(Si2O7)(OH)3Mon. 2/m : P21/m
9.BG.15SursassiteMn2+2Al3(SiO4)(Si2O7)(OH)3Mon. 2/m : P21/m
9.BG.20Pumpellyite-(Al)Ca2AlAl2[Si2O6OH][SiO4](OH)2OMon. 2/m
9.BG.20Shuiskite-(Mg)Ca2MgCr3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Julgoldite-(Fe2+)Ca2Fe2+Fe3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20OkhotskiteCa2Mn2+Mn3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Julgoldite-(Mg)Ca2MgFe3+2[Si2O6OH][SiO4](OH)2(OH)Mon.
9.BG.20PoppiiteCa2V3+V3+2[Si2O6OH][SiO4](OH)2OMon. 2/m : B2/m
9.BG.20Julgoldite-(Fe3+)Ca2Fe3+Fe3+2[Si2O6OH][SiO4](OH)2OMon.
9.BG.20Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Pumpellyite-(Fe3+)Ca2Fe3+Al2[Si2O6OH][SiO4](OH)2OMon. 2/m
9.BG.20Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Pumpellyite-(Mn2+)Ca2Mn2+Al2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.25GanomalitePb9Ca5Mn(Si2O7)4(SiO4)OHex. 6 : P6
9.BG.25WayneburnhamitePb9Ca6(Si2O7)3(SiO4)3Hex. 6 : P6
9.BG.30RustumiteCa10(Si2O7)2(SiO4)(OH)2Cl2Mon. 2/m : B2/b
9.BG.35ModraiteCa19Fe2+Al4(Al6Fe2+2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35FluorvesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(F,OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35Milanriederite(Ca18[REE])Fe3+Al4(Mg4Al4)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35Manaevite-(Ce)(Ca13Ce4[H2O]2)Mg(Al3Mg)(Mg3Ti3Fe3+2)(◻4)◻[Si2O7]4[(SiO4)8(H4O4)2]O(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35HongheiteCa19Fe2+Al4(Fe3+,Mg)8(◻4)B[Si2O7]4[(SiO4)10]O(OH,O)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35WiluiteCa19MgAl4(Al,Mg)8(B,◻)4◻[Si2O7]4[(SiO4)10]O(O,OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35CyprineCa19Cu2+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/m : P4/n
9.BG.35ManganvesuvianiteCa19Mn3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m : P4/n
9.BG.40Vyuntspakhkite-(Y)(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7Mon.
9.BG.45DellaiteCa6Si3O11(OH)2Tric.
9.BG.50Ferriperbøeite-(Ce)CaCe3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/m
9.BG.50Perbøeite-(La)CaLa3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 Mon. 2/m : P21/m
9.BG.50Perbøeite-(Ce)CaCe3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 Mon. 2/m : P21/m
9.BG.50Gatelite-(Ce)CaCe3(AlAl2Mg)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/b
9.BG.50Ferriperbøeite-(La) CaLa3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/m
9.BG.55Västmanlandite-(Ce)CaCe3(MgAl2Mg)[Si2O7][SiO4]3F(OH)2Mon. 2/m : P21/m
9.BG.60Radekškodaite-(La) (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m : P21/m
9.BG.60Radekškodaite-(Ce)(CaCe5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m : P21/m

Other InformationHide

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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 MagnesiovesuvianiteHide

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mindat.org URL:
https://www.mindat.org/min-47594.html
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References for MagnesiovesuvianiteHide

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Reference List:

Localities for MagnesiovesuvianiteHide

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Showing 3 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Italy
  • Liguria
    • La Spezia Province
      • Borghetto di Vara
analysed by Dr. Anthony Kampf +1 other reference
North Macedonia (TL)
  • Lipkovo Municipality
    • Lojane
Hålenius et al. (2016) +1 other reference
Norway
  • Telemark
    • Hjartdal
      • Sauland
        • Kleppan
Panikorovskii et al. (2017)
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