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Rubinite

A valid IMA mineral species
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03917280017762506366069.jpg
Rubinite, etc.

Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
03917280017762506366069.jpg
Rubinite, etc.

Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
03917280017762506366069.jpg
Rubinite, etc.

Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
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About RubiniteHide

A "super-reduced" garnet.


Unique IdentifiersHide

Mindat ID:
51587
Long-form identifier:
mindat:1:1:51587:2

IMA Classification of RubiniteHide

Classification of RubiniteHide

Strunz-mindat (2026):
9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination

Mineral SymbolsHide

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

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

Physical Properties of RubiniteHide

Colour:
Bluish brown
Density:
3.63 g/cm3 (Calculated)
Comment:
3.63 in Allende; 4.08 in Vigarano; 3.11-3.17 in Efremovka

Chemistry of RubiniteHide

Mindat Formula:
Ca3Ti3+2(SiO4)3
Element Weights:
Element% weight
O39.006 %
Ca24.427 %
Ti19.450 %
Si17.118 %

Calculated from ideal end-member formula.
Elements listed:
Ca, O, Si, Ti - search for minerals with similar chemistry

Crystallography of RubiniteHide

Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Ia3d
Setting:
Ia3d
Cell Parameters:
a = 12.0193(4) Å
Unit Cell V:
1,736.35 ų (Calculated from Unit Cell)
Z:
8

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 1: Primary nebular phases4.567-4.561
3 : Solar nebular condensates (CAIs, AOAs, URIs)>4.565
Geological Setting:
phosphide-bearing breccia from the pyrometamorphic Hatrurim Complex, Negev Desert, Israel

Type Occurrence of RubiniteHide

Co-Type Localities:
ⓘ Vigarano meteorite (Cariani; Ferrara; Mainardi; Morandi; Parish; Pieve; Vigarano Mainarda; Vigarano Pieve; Vigarno; Vigarvano; Vigavano [NHM cat.]), Vigarano Pieve, Vigarano Mainarda, Ferrara Province, Emilia-Romagna, Italy
ⓘ Efremovka meteorite, Pavlodar District, Pavlodar Region, Kazakhstan
ⓘ Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
General Appearance of Type Material:
Irregular to subhedral crystals, ~0.5‒1 μm, 1-8 μm in size in Allende, 2-25 μm in size in Efremovka .
Place of Conservation of Type Material:
Type material is deposited in the meteorite collection of the Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA, section VCM3 (Vigarano), and the Division of Earth and Planetary Materials Science USNM 7927.
The type material in Allende section AE01 is in the Meteorite Collection of Department of Earth Science, Graduate School of Science, Tohoku University, Sendai, Japan.
Efremovka sections E101 and E105 are at the University of Hawai'i at Mānoa, Honolulu, USA, 102 and E40E is in the Vernadsky Institute, Moscow, Russia.
Geological Setting of Type Material:
Ca-Al-rich inclusions (CAIs) from the CV3 chondrites.
Are high-temperature primary garnets formed either by gas-solid condensation and/or igneous crystallization under highly reducing conditions in the solar nebula.
Associated Minerals at Type Locality:
DavisiteDiopsideOlivine GroupPanguiteSpinel
Reference:
Ma, Chi, Yoshizaki, Takashi, Krot, Alexander N., Beckett, John R., Nakamura, Tomoki, Nagashima, Kazuhide, Muto, Jun, Ivanova, Marina A., Ulyanov, Alexander A. (2025) Rubinite, Ca3Ti23+Si3O12, a new mineral in CV3 carbonaceous chondrites and a refractory garnet from the solar nebula. American Mineralogist, 110 (3). doi:10.2138/am-2024-9435

Synonyms of RubiniteHide

Other Language Names for RubiniteHide

Dutch:Rubiniet
German:Rubinit

Relationship of Rubinite to other SpeciesHide

Member of:
Garnet Group > Garnet Supergroup
Other Members of Garnet Group:
AlmandineFe2+3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
AndraditeCa3Fe3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
'Blythite'Mn2+3Mn3+2[SiO4]3
CalderiteMn2+3Fe3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
EringaiteCa3Sc2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
GoldmaniteCa3V3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
GrossularCa3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
'Khoharite'Mg3Fe3+2(SiO4)3
KnorringiteMg3Cr3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
MajoriteMg3(MgSi)(SiO4)3Iso. m3m(4/m32/m) : Ia3d
Menzerite-(Y)(Y2Ca)Mg2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
MomoiiteMn2+3V3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
MorimotoiteCa3(TiFe2+)(SiO4)3Iso. m3m(4/m32/m) : Ia3d
PyropeMg3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
'Skiagite'Fe2+3Fe3+2[SiO4]3
SpessartineMn2+3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
'UM1984-37-SiO:CrMn'Mn2+3Cr3+2(SiO4)3
UvaroviteCa3Cr3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Rubinite associated with Melilite GroupCa2M(XSiO7)

Related Minerals - Strunz-mindat GroupingHide

9.AD.AdrianiteCa12(Al4Mg3Si7)O32Cl6Iso. 43m : I43d
9.AD.05LarniteCa2SiO4Mon. 2/m
9.AD.10Calcio-olivineCa2SiO4Orth. mmm(2/m2/m2/m)
9.AD.15MerwiniteCa3Mg(SiO4)2Mon. 2/m : P21/b
9.AD.20BredigiteCa7Mg(SiO4)4Orth. mm2 : Pnn2
9.AD.25MidbariteCa3Mg2(V5+2Si)O12Iso. m3m(4/m32/m) : Ia3d
9.AD.25Menzerite-(Y)(Y2Ca)Mg2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25UvaroviteCa3Cr3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25EltyubyuiteCa12Fe3+10Si4O32Cl6Iso. 43m : I43d
9.AD.25EringaiteCa3Sc2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25HenritermieriteCa3Mn3+2(SiO4)2[◻(OH)4]Tet. 4/mmm(4/m2/m2/m) : I41/acd
9.AD.25 va'Hydrougrandite'(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]Iso.
9.AD.25CalderiteMn2+3Fe3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25NikmelnikoviteCa12(Fe2+Fe3+3Al3◻)[SiO4]6[◻(OH)4]5◻4Trig. 3 : R3
9.AD.25HutcheoniteCa3Ti2(SiO4)(AlO4)2Iso. m3m(4/m32/m) : Ia3d
9.AD.25Wadalite(Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3Iso. 43m : I43d
9.AD.25KerimasiteCa3Zr2(SiO4)(Fe3+O4)2Iso. m3m(4/m32/m) : Ia3d
9.AD.25HoltstamiteCa3Al2(SiO4)2[◻(OH)4]Tet. 4/mmm(4/m2/m2/m) : I41/acd
9.AD.25SpessartineMn2+3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25ToturiteCa3Sn2(SiO4)(Fe3+O4)2Iso. m3m(4/m32/m) : Ia3d
9.AD.25KimzeyiteCa3Zr2(SiO4)(AlO4)2Iso. m3m(4/m32/m) : Ia3d
9.AD.25'Khoharite'Mg3Fe3+2(SiO4)3
9.AD.25IrinarassiteCa3Sn2(SiO4)(AlO4)2Iso. m3m(4/m32/m) : Ia3d
9.AD.25KnorringiteMg3Cr3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25GoldmaniteCa3V3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25'Blythite'Mn2+3Mn3+2[SiO4]3
9.AD.25'Skiagite'Fe2+3Fe3+2[SiO4]3
9.AD.25'UM1984-37-SiO:CrMn'Mn2+3Cr3+2(SiO4)3
9.AD.25AlmandineFe2+3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25 va'Yamatoite'(Mn2+,Ca)3(V3+,Al)2(SiO4)3Iso.
9.AD.25MomoiiteMn2+3V3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25GrossularCa3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25AndraditeCa3Fe3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25MorimotoiteCa3(TiFe2+)(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25MajoriteMg3(MgSi)(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25PyropeMg3Al2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
9.AD.25SchorlomiteCa3Ti2(SiO4)(Fe3+O4)2Iso. m3m(4/m32/m) : Ia3d
9.AD.30HafnonHf(SiO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
9.AD.30ZirconZr(SiO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
9.AD.30CoffiniteU(SiO4) · nH2OTet. 4/mmm(4/m2/m2/m) : I41/amd
9.AD.30ThoriteTh(SiO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
9.AD.30 va'Auerlite'near Th(Si,P)O4
9.AD.30Stetindite-(Ce)Ce4+SiO4Tet. 4/mmm(4/m2/m2/m) : I41/amd
9.AD.35'Tombarthite-(Y)'Y4(Si,H4)4O12-x(OH)4+2xMon.
9.AD.35HuttoniteThSiO4Mon. 2/m
9.AD.40EulytineBi4(SiO4)3Iso. 43m : I43d
9.AD.45ReiditeZr(SiO4)Tet. 4/m : I41/a
9.AD.55JeffbeniteMg3Al2Si3O12Tet. 42m : I42d

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.

Internet Links for RubiniteHide

References for RubiniteHide

Localities for RubiniteHide

Showing 5 localities.

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.
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Locality ListHide

- 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). 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.
Israel
 
  • Southern District
    • Beersheba Subdistrict
      • Tamar Regional Council
        • Hatrurim Basin
Galuskin et al. (2025)
          • Wadi Zohar
Galuskin et al. (2025)
Italy (TL)
 
  • Emilia-Romagna
    • Ferrara Province
      • Vigarano Mainarda
        • Vigarano Pieve
Mineralogical Magazine +2 other references
Kazakhstan (TL)
 
  • Pavlodar Region
    • Pavlodar District
Miller (2021)
Mexico (TL)
 
  • Chihuahua
    • Pueblito de Allende
Ma et al. (2017)
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