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Grossmanite

A valid IMA mineral species
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03764340014946381731654.jpg
Grossmanite

Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
03764340014946381731654.jpg
Grossmanite

Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
03764340014946381731654.jpg
Grossmanite

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

08917880015415919766861.jpg
Lawrence Grossman
Formula:
CaTi3+ AlSiO6
Colour:
Light gray
Specific Gravity:
3.41 (Calculated)
Crystal System:
Monoclinic
Name:
Name in honor of Lawrence Grossman (b. 1946), Professor of Cosmochemistry at the University of Chicago, Illinois, USA. He made significant contributions to meteorite research.
Pyroxene Group. Clinopyroxene Subgroup. The Ti3+ analogue of burnettite (V), davisite (Sc), esseneite (Fe3+), and kushiroite (Al).

The CaAl analogue of colomeraite (yet another Ti3+-rich clinopyroxene).

One of just a few currently known phases with essential trivalent Ti, by tistarite, 'UM1971-21-SiO:AlCaMgTi' and 'UM1978-08-O:AlCaCrFeMgTi'.

Common in both fluffy and compact types of Ca-Al-rich inclusions (CAIs) of a chondrite. Probably formed in residual melt pockets.

Compare UM2004-50-SiO:AlFeGd.


Unique IdentifiersHide

Mindat ID:
39426
Long-form identifier:
mindat:1:1:39426:0
GUID
(UUID V4):
d6805bb6-03ca-4ed0-8a76-f3ffbd930211

IMA Classification of GrossmaniteHide

Classification of GrossmaniteHide

Strunz-mindat (2023):
9.DA.15

9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family

Mineral SymbolsHide

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

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

Physical Properties of GrossmaniteHide

Transparency:
Transparent
Colour:
Light gray
Density:
3.41 g/cm3 (Calculated)

Chemistry of GrossmaniteHide

Mindat Formula:
CaTi3+ AlSiO6
Elements listed:
Al, Ca, O, Si, Ti - search for minerals with similar chemistry

Crystallography of GrossmaniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 9.884 Å, b = 8.988 Å, c = 5.446 Å
β = 105.86°
Ratio:
a:b:c = 1.1 : 1 : 0.606
Unit Cell V:
465.39 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.996 Å(100)
2.964 Å(31)
2.909 Å(25)
2.581 Å(42)
2.5605 Å(28)
2.535 Å(47)
2.130 Å(19)
1.431 Å(19)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 1: Primary nebular phases4.567-4.561
4 : Primary chondrule phases4.566–4.561
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites

Type Occurrence of GrossmaniteHide

Type Locality:
ⓘ Allende meteorite, Pueblito de Allende, Chihuahua, Mexico
General Appearance of Type Material:
1-7 micron particles.
Place of Conservation of Type Material:
National Museum of Natural History (Smithsonian Institution), Washington, D.C., USA, number USNM 7562.
Geological Setting of Type Material:
Carbonaceous chondrite meteorite.
Associated Minerals at Type Locality:
SpinelPerovskiteMelilite GroupGrossite
Reference:
Ma, C., Rossman, G.R. (2009) Grossmanite, CaTi3+AlSiO6, a new pyroxene from the Allende meteorite. American Mineralogist: 94: 1491–1494.
Download:
http://rruff.info/rruff_1.0/uploads/AM94_1491.pdf

Synonyms of GrossmaniteHide

Relationship of Grossmanite to other SpeciesHide

Member of:
Clinopyroxene Subgroup > Pyroxene Group
Other Members of this group:
AegirineNaFe3+Si2O6Mon. 2/m : B2/b
Aegirine-augite(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6Mon. 2/m : B2/b
Augite(CaxMgyFez)(Mgy1Fez1)Si2O6Mon. 2/m : B2/b
BurnettiteCaVAlSiO6Mon. 2/m : B2/b
ClinoenstatiteMgSiO3Mon. 2/m : P21/b
ClinoferrosiliteFe2+2Si2O6Mon. 2/m : P21/b
ColomeraiteNaTi3+Si2O6Mon. 2/m : B2/b
DavisiteCaScAlSiO6Mon. 2/m : B2/b
DiopsideCaMgSi2O6Mon. 2/m : B2/b
EsseneiteCaFe3+[AlSiO6]Mon. 2/m : B2/b
HedenbergiteCaFe2+Si2O6Mon. 2/m : B2/b
JadeiteNa(Al,Fe3+)Si2O6Mon. 2/m : B2/b
JervisiteNaSc3+Si2O6Mon. 2/m : B2/b
JohannseniteCaMn2+Si2O6Mon. 2/m : B2/b
KanoiteMn2+(Mg,Mn2+)Si2O6Mon. 2/m : P21/b
KosmochlorNaCrSi2O6Mon. 2/m : B2/b
KushiroiteCaAl[AlSiO6]Mon. 2/m : B2/b
NamansiliteNaMn3+Si2O6Mon. 2/m : B2/b
NatalyiteNaV3+Si2O6Mon. 2/m : B2/b
Omphacite(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6Mon. 2/m
PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6Mon. 2/m : B2/b
Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6Mon. 2/m : P21/b
RyabchikoviteCuMgSi2O6Mon. 2/m : P21/b
SpodumeneLiAlSi2O6Mon. 2/m : B2/b
Tissintite(Ca,Na,◻)AlSi2O6Mon. 2/m : B2/b
UM2001-19-SiO:AlCaMgNa(Na,Mg,Ca)(Mg,Al)Si2O6Mon. 2/m : B2/b
UM2003-36-SiO:CaNaNaCrSi2O6 - CaMgSi2O6Mon. 2/m : B2/b

Related Minerals - Strunz-mindat GroupingHide

9.DA.ProtoenstatiteMg2Si2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
9.DA.RyabchikoviteCuMgSi2O6Mon. 2/m : P21/b
9.DA.ColomeraiteNaTi3+Si2O6Mon. 2/m : B2/b
9.DA.05Donpeacorite(Mn,Mg)MgSi2O6Orth. mmm (2/m 2/m 2/m) : Pbca
9.DA.05EnstatiteMg2Si2O6Orth. mmm (2/m 2/m 2/m) : Pbca
9.DA.05FerrosiliteFe2+2Si2O6Orth. mmm (2/m 2/m 2/m) : Pbca
9.DA.10ClinoenstatiteMgSiO3Mon. 2/m : P21/b
9.DA.10ClinoferrosiliteFe2+2Si2O6Mon. 2/m : P21/b
9.DA.10KanoiteMn2+(Mg,Mn2+)Si2O6Mon. 2/m : P21/b
9.DA.10Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6Mon. 2/m : P21/b
9.DA.15Augite(CaxMgyFez)(Mgy1Fez1)Si2O6Mon. 2/m : B2/b
9.DA.15DiopsideCaMgSi2O6Mon. 2/m : B2/b
9.DA.15EsseneiteCaFe3+[AlSiO6]Mon. 2/m : B2/b
9.DA.15HedenbergiteCaFe2+Si2O6Mon. 2/m : B2/b
9.DA.15 vaJeffersoniteCa(Mn,Zn,Fe)Si2O6
9.DA.15JohannseniteCaMn2+Si2O6Mon. 2/m : B2/b
9.DA.15PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6Mon. 2/m : B2/b
9.DA.15DavisiteCaScAlSiO6Mon. 2/m : B2/b
9.DA.15KushiroiteCaAl[AlSiO6]Mon. 2/m : B2/b
9.DA.20Aegirine-augite(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6Mon. 2/m : B2/b
9.DA.20Omphacite(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6Mon. 2/m
9.DA.25AegirineNaFe3+Si2O6Mon. 2/m : B2/b
9.DA.25JadeiteNa(Al,Fe3+)Si2O6Mon. 2/m : B2/b
9.DA.25JervisiteNaSc3+Si2O6Mon. 2/m : B2/b
9.DA.25KosmochlorNaCrSi2O6Mon. 2/m : B2/b
9.DA.25NamansiliteNaMn3+Si2O6Mon. 2/m : B2/b
9.DA.25NatalyiteNaV3+Si2O6Mon. 2/m : B2/b
9.DA.25Tissintite(Ca,Na,◻)AlSi2O6Mon. 2/m : B2/b
9.DA.30SpodumeneLiAlSi2O6Mon. 2/m : B2/b
9.DA.35HiroseiteFeSiO3Orth. mmm (2/m 2/m 2/m) : Pnma

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 GrossmaniteHide

References for GrossmaniteHide

Localities for GrossmaniteHide

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 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.
Kazakhstan
 
  • Pavlodar Region
    • Pavlodar
Miller, M. (2021). Hunting for Rare-Earth-Element (REE)-bearing minerals in Northern Labrador: MLA-SEM analysis of surficial sediments within the glacial dispersion zone from the Strange Lake main zone deposit (Masters thesis, Memorial University of Newfoundland).
Mexico (TL)
 
  • Chihuahua
    • Pueblito de Allende
American Mineralogist, Volume 94, pages 1483–1486, 2009
Ma, C., Paque, J., & Tschauner, O. (2016, March). Discovery of Beckettite, Ca2V6Al6O20, a New Alteration Mineral in a V-Rich Ca-Al-Rich Inclusion from Allende. In Lunar and Planetary Science Conference (Vol. 47, p. 1704).
Ma, C., Yoshizaki, T., Krot, A.N., Beckett, J.R., Nakamura, T., Nagashima, K., Muto, J., Ivanova, M.A. (2017) Discovery of rubinite, Ca3Ti23+Si3O12, a new garnet mineral in refractory inclusions from carbonaceous chondrites. 80th Annual Meeting of the Meteoritical Society 2017 (LPI Contribution No. 1987)
Ma, C. (2018). Discovery of meteoritic baghdadite, Ca_3 (Zr, Ti) Si_2O_9, in Allende: The first solar silicate with structurally essential zirconium?. Meteoritics and Planetary Science, 53(S1), 6358.
Tanzania
 
  • Mbeya Region
Frank, D., Zolensky, M., Martinez, J., Mikouchi, T., Ohsumi, K., Hagiya, K., Satake, W., Le, L., Ross, D., Peslier, A. (2011) A CAI in the Ivuna CI1 Chondrite. 42nd Lunar and Planetary Science Conference. LPI Contribution #1608: 2785.
Ukraine
 
  • Donetsk Oblast
Yatsenko, I.G., Poberezhskyy, A.V., Bilyk, N.T., Bekesha, S.N., Stupka, O.O. (2021): Super reduced mineral phases in corundum aggregates from kimberlite. The discovery of terrestrial grossmanite. Conference Paper, Geologichna Nauka v Nezalezhniy Ukrainy, 8-9 September, UDK549(477), Kiev, Ukraine
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