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Majorite

A valid IMA mineral species
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About MajoriteHide

Formula:
Mg3(MgSi)(SiO4)3
Colour:
Purple, pale yellowish brown
Lustre:
Vitreous
Hardness:
7 - 7½
Specific Gravity:
4
Crystal System:
Isometric
Name:
Named by J.V. Smith and B. Mason in 1970 in honor of Alan Major, Department of Geophysics and Geochemistry, Australian National University, Canberra. He assisted A. E. Ringwood in the high-pressure synthesis of garnet from pyroxene.
The term "majoritic garnet" is often used in the literature. This term will normally be used for pyrope garnets with a small majorite component, and not the mineral majorite.


Unique IdentifiersHide

Mindat ID:
2546
Long-form identifier:
mindat:1:1:2546:7

Similar NamesHide

MazoriteA valid IMA mineral speciesBa3(PO4)2

IMA Classification of MajoriteHide

Classification of MajoriteHide

9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
51.4.3a.5

51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
14.21.13

14 : Silicates not Containing Aluminum
21 : Silicates of Fe and Mg

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
MajIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
MajWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
MjtThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of MajoriteHide

Vitreous
Transparency:
Translucent
Colour:
Purple, pale yellowish brown
Streak:
White
Hardness:
7 - 7½ on Mohs scale
Density:
4 g/cm3 (Measured)    4.00 g/cm3 (Calculated)

Optical Data of MajoriteHide

Type:
Isotropic
Comments:
n = n.d

Chemistry of MajoriteHide

Mindat Formula:
Mg3(MgSi)(SiO4)3
Element Weights:
Element% weight
O47.812 %
Si27.977 %
Mg24.211 %

Calculated from ideal end-member formula.
O
Si
Mg
Common Impurities:
Cr,Ni,Ca,Na

Crystallography of MajoriteHide

Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Ia3d
Setting:
Ia3d
Cell Parameters:
a = 11.53(1) Å
Unit Cell V:
1,532.81 ų (Calculated from Unit Cell)
Z:
8

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0001663MajoriteHazen R M, Downs R T, Finger L W, Conrad P G, Gasparik T (1994) Crystal chemistry of Ca-bearing majorite American Mineralogist 79 581-5841994synthetic0293
0002263MajoriteNakatsuka A, Yoshiasa A, Yamanaka T, Ohtaka O, Katsura T, Ito E (1999) Symmetry change of majorite solid-solution in the system Mg3Al2Si3O12-MgSiO3 American Mineralogist 84 1135-114319990293
0002262MajoriteNakatsuka A, Yoshiasa A, Yamanaka T, Ohtaka O, Katsura T, Ito E (1999) Symmetry change of majorite solid-solution in the system Mg3Al2Si3O12-MgSiO3 American Mineralogist 84 1135-114319990293
0002261MajoriteNakatsuka A, Yoshiasa A, Yamanaka T, Ohtaka O, Katsura T, Ito E (1999) Symmetry change of majorite solid-solution in the system Mg3Al2Si3O12-MgSiO3 American Mineralogist 84 1135-114319990293
0002087MajoriteNakatsuka A, Yoshiasa A, Yamanaka T, Ito E (1999) Structure refinement of birefringent Cr-bearing majorite Mg3(Mg.34Si.34Al.18Cr.14)2Si3O12 American Mineralogist 84 199-20219990293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.575 Å(100*)
2.881 Å(70)
1.540 Å(60)
2.454 Å(45*)
1.597 Å(40)
2.262 Å(35*)
2.352 Å(30)
Comments:
* = overlap with goethite impurity. (ICDD 25-843)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 2: Planetesimal differentiation and alteration4.566-4.550
6 : Secondary asteroid phases4.566-4.560
Near-surface Processes
26 : Hadean detrital minerals
Stage 5: Initiation of plate tectonics<3.5-2.5
39 : High-? metamorphism (blueschist, eclogite, ultrahigh ? facies)

Type Occurrence of MajoriteHide

General Appearance of Type Material:
Grains, to 10 μm
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 122379.
Associated Minerals at Type Locality:

Synonyms of MajoriteHide

Other Language Names for MajoriteHide

Dutch:Majoriet
German:Majorit
Simplified Chinese:镁铁榴石
Spanish:Majorita
Traditional Chinese:鎂鐵榴石

Relationship of Majorite to other SpeciesHide

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
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
RubiniteCa3Ti3+2(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
Forms a series with:

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Majorite associated with Ringwoodite(Mg,Fe2+)2SiO4
1 photo of Majorite associated with LinguniteNaAlSi3O8
1 photo of Majorite associated with ForsteriteMg2(SiO4)
1 photo of Majorite associated with BridgmaniteMgSiO3
1 photo of Majorite associated with AkimotoiteMgSiO3
1 photo of Majorite associated with XieiteFe2+Cr2O4

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]54Trig. 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.25RubiniteCa3Ti3+2(SiO4)3Iso. m3m(4/m32/m) : Ia3d
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.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 MajoriteHide

References for MajoriteHide

Reference List:

Localities for MajoriteHide

Showing 39 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.
Antarctica
 
  • East Antarctica
    • American Highland
      • Grove Mountains
YT Lin et al. (2011)
Lu Feng et al. (2011)
    • Queen Maud Land
      • Queen Fabiola Mountains
Kato et al. (2017)
Australia
 
  • New South Wales
    • Bourke Co.
Mason et al. (5)
  • Queensland
    • Barcoo Shire
      • Windorah
        • Tenham Station
Tomioka et al. (1999) +1 other reference
  • Western Australia
    • Kalgoorlie-Boulder Shire
      • Rawlinna
Smith +1 other reference
Brazil
 
  • Mato Grosso
    • Juína
Bulanova et al. (2010)
Thomson et al. (2014)
Ragozin +5 other references
Canada
 
  • Alberta
    • Peace River
Burke et al. (1983) +1 other reference
  • Québec
    • Abitibi-Témiscamingue
      • La Vallée-de-l'Or RCM
        • Réservoir-Dozois
Olivier Langelier Collection
  • Saskatchewan
    • Catherwood
Coleman (1977)
China
 
  • Hubei
    • Suizhou
      • Zengdu District
        • Xihe
Xie Xiande et al. (2001) +5 other references
  • Jiangsu
    • Taizhou
      • Gaogang District
        • Sixiangkou
Miyajima et al. (2007) +1 other reference
France
 
  • Centre-Val de Loire
    • Indre
      • Le Blanc
        • Le Blanc
www.excaliburmineral.com
    • Loiret
      • Montargis
Baziotis et al. (2018)
Guinea
 
  • Kankan Region
    • Kankan Prefecture
Stachel et al. (2002)
India
 
  • Bihar
    • Gaya District
Malavergne et al. (2001)
  • Karnataka
    • Shimoga District
Datta et al. (2021, December)
  • Maharashtra
    • Nagpur Division
Ghosh et al. (2021)
Jordan
 
  • Mafraq Governorate
Yaseen (2014)
Kazakhstan
 
  • Akmola Region
    • Zerendi District
      • Prirechnoye
        • Lake Kumdikol (Lake Kumdykol'; Ozero Kumdykol')
Nitsenko et al. (2004)
Lesotho
 
  • Mokhotlong District
10.1126/sciadv.abe9773 +1 other reference
Lithuania
 
  • Utena County
    • Anyksciu
      • Androniski
Miyahara et al. (2021)
Morocco
 
  • Souss-Massa Region
    • Tata Province
      • Tata Cercle
Baziotis et al. (2013)
Nigeria
 
  • Yobe
    • Bogga Dingare
Weisberg et al. (2010)
Northwest Africa Meteorites
 
Fudge et al. (2018)
Gu et al. (2025)
Oman
 
  • Dhofar Governorate
Litasov et al. (2019)
Litasov et al. (2019)
D.D. Badjukov et al. et al. (2005)
Russia
 
  • Sakha
    • Anabarsky District
      • Ebelyakh River basin
Ragozin +4 other references
Solomon Islands
 
  • Malaita Province
    • Malaita Island
Mineralogical Magazine +1 other reference
South Africa
 
  • Free State
    • Thabo Mofutsanyane District Municipality
      • Setsoto Local Municipality
        • Clocolan
Field et al. (2008)
  • North West
    • Bojanala Platinum District Municipality
      • Kgetlengrivier Local Municipality
        • Swartruggens
Field et al. (2008)
USA
 
  • Kansas
    • Ness County
Rubin et al. (1984)
  • New Mexico
    • De Baca County
Acosta et al. (2012)
    • Harding County
Zhidong Xie et al. (2005)
  • Texas
    • Randall County
Zhidong Xie et al.
 
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