Majorite (original) (raw)
A valid IMA mineral species
About MajoriteHide
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Colour:
Purple, pale yellowish brown
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
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Long-form identifier:
mindat:1:1:2546:7
dd6458e5-18e0-4f85-93d9-88b8474614af
IMA Classification of MajoriteHide
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Type description reference:
Classification of MajoriteHide
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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
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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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Maj | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Maj | Whitney & 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 |
Mjt | The 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
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Colour:
Purple, pale yellowish brown
Density:
4 g/cm3 (Measured) 4.00 g/cm3 (Calculated)
Optical Data of MajoriteHide
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Chemistry of MajoriteHide
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Mindat Formula:
Mg3(MgSi)(SiO4)3
Common Impurities:
Cr,Ni,Ca,Na
Crystallography of MajoriteHide
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Class (H-M):
m_3_m _(_4/_m_32/m ) - Hexoctahedral
Cell Parameters:
a = 11.53(1) Å
Unit Cell V:
1,532.81 ų (Calculated from Unit Cell)
Crystal StructureHide
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ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0001663 | Majorite | Hazen R M, Downs R T, Finger L W, Conrad P G, Gasparik T (1994) Crystal chemistry of Ca-bearing majorite American Mineralogist 79 581-584 | 1994 | synthetic | 0 | 293 | |
0002087 | Majorite | Nakatsuka A, Yoshiasa A, Yamanaka T, Ito E (1999) Structure refinement of birefringent Cr-bearing majorite Mg3(Mg.34Si.34Al.18Cr.14)2Si3O12 American Mineralogist 84 199-202 | 1999 | 0 | 293 | ||
0002261 | Majorite | Nakatsuka 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 1135-1143 | 1999 | 0 | 293 | ||
0002262 | Majorite | Nakatsuka 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 1135-1143 | 1999 | 0 | 293 | ||
0002263 | Majorite | Nakatsuka 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 1135-1143 | 1999 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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
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Type Occurrence of MajoriteHide
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General Appearance of Type Material:
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 122379.
Associated Minerals at Type Locality:
Reference:
Smith, J.V., Mason, B. (1970) Pyroxene-garnet transformation in Coorara meteorite. Science: 168: 832-833.
Synonyms of MajoriteHide
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Other Language Names for MajoriteHide
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Simplified Chinese:镁铁榴石
Traditional Chinese:鎂鐵榴石
Relationship of Majorite to other SpeciesHide
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Other Members of this group:
Almandine | Fe2+3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
---|---|---|
Andradite | Ca3Fe3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Blythite | Mn2+3Mn3+2[SiO4]3 | |
Calderite | Mn2+3Fe3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Eringaite | Ca3Sc2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Goldmanite | Ca3V3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Grossular | Ca3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Khoharite | Mg3Fe3+2(SiO4)3 | |
Knorringite | Mg3Cr2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Menzerite-(Y) | (Y2Ca)Mg2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Momoiite | Mn2+3V3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Morimotoite | Ca3(TiFe2+)(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Pyrope | Mg3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Skiagite | Fe2+3Fe3+2[SiO4]3 | |
Spessartine | Mn2+3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Uvarovite | Ca3Cr2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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9.AD. | Adrianite | Ca12(Al4Mg3Si7)O32Cl6 | Iso. 43_m_ : I_43_d |
---|---|---|---|
9.AD.05 | Larnite | Ca2SiO4 | Mon. 2/m |
9.AD.10 | Calcio-olivine | Ca2SiO4 | Orth. m m m _(_2/_m_2/_m_2/m ) |
9.AD.15 | Merwinite | Ca3Mg(SiO4)2 | Mon. 2/m : _P_21/b |
9.AD.20 | Bredigite | Ca7Mg(SiO4)4 | Orth. m _m_2 : P n _n_2 |
9.AD.25 | Andradite | Ca3Fe3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Almandine | Fe2+3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Calderite | Mn2+3Fe3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Goldmanite | Ca3V3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Grossular | Ca3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Henritermierite | Ca3Mn3+2(SiO4)2[◻(OH)4] | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a c d |
9.AD.25 | Kimzeyite | Ca3Zr2(SiO4)(AlO4)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Knorringite | Mg3Cr2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Morimotoite | Ca3(TiFe2+)(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Pyrope | Mg3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Schorlomite | Ca3Ti2(SiO4)(Fe3+O4)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Spessartine | Mn2+3Al2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Uvarovite | Ca3Cr2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Wadalite | (Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3 | Iso. 43_m_ : I_43_d |
9.AD.25 va | Hydrougrandite | (Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2] | Iso. |
9.AD.25 va | Yamatoite | (Mn2+,Ca)3(V3+,Al)2(SiO4)3 | Iso. |
9.AD.25 | Holtstamite | Ca3Al2(SiO4)2[◻(OH)4] | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a c d |
9.AD.25 | Khoharite | Mg3Fe3+2(SiO4)3 | |
9.AD.25 | Kerimasite | Ca3Zr2(SiO4)(Fe3+O4)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Toturite | Ca3Sn2(SiO4)(Fe3+O4)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Momoiite | Mn2+3V3+2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Eringaite | Ca3Sc2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Irinarassite | Ca3Sn2(SiO4)(AlO4)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Menzerite-(Y) | (Y2Ca)Mg2(SiO4)3 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | Eltyubyuite | Ca12Fe3+10Si4O32Cl6 | Iso. 43_m_ : I_43_d |
9.AD.25 | Blythite | Mn2+3Mn3+2[SiO4]3 | |
9.AD.25 | Skiagite | Fe2+3Fe3+2[SiO4]3 | |
9.AD.25 | Hutcheonite | Ca3Ti2(SiO4)(AlO4)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
9.AD.25 | UM1984-37-SiO:CrMn | Mn2+3Cr3+2(SiO4)3 | |
9.AD.25 | Rubinite | Ca3Ti3+2Si3O12 | Iso. |
9.AD.25 | Nikmelnikovite | Ca12(Fe2+Fe3+3Al3◻)[SiO4]6[◻(OH)4]5◻4 | Trig. 3 : _R_3 |
9.AD.25 | Midbarite | Ca3Mg2(V2Si)O12 | Iso. m_3_m _(_4/_m_32/m ) |
9.AD.30 va | Auerlite | near Th(Si,P)O4 | |
9.AD.30 | Coffinite | U(SiO4) · nH2O | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a m d |
9.AD.30 | Hafnon | HfSiO4 | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a m d |
9.AD.30 | Thorite | Th(SiO4) | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a m d |
9.AD.30 | Zircon | Zr(SiO4) | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a m d |
9.AD.30 | Stetindite-(Ce) | Ce(SiO4) | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a m d |
9.AD.35 | Huttonite | ThSiO4 | Mon. 2/m |
9.AD.35 | Tombarthite-(Y) | Y4(Si,H4)4O12-x(OH)4+2x | Mon. |
9.AD.40 | Eulytine | Bi4(SiO4)3 | Iso. 43_m_ : I_43_d |
9.AD.45 | Reidite | ZrSiO4 | Tet. 4/m : _I_41/a |
9.AD.55 | Jeffbenite | Mg3Al2Si3O12 | Tet. 42_m_ : I_42_d |
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 MajoriteHide
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References for MajoriteHide
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Reference List:
Grew, E. S., Locock, A. J., Mills, S. J., Galuskina, I. O., Galuskin, E. V., Hålenius, U. (2013) Nomenclature of the garnet supergroup. American Mineralogist, 98 (4) 785-811 doi:10.2138/am.2013.4201
Localities for MajoriteHide
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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
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- 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.