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Dissakisite-(Ce)

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About Dissakisite-(Ce)Hide

Formula:
{CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)
Hardness:
6½ - 7
Crystal System:
Monoclinic
Name:
Named in 1991 by Edward S. Grew, Eric J. Essene, Donald R. Peacor, Shu-Chun Su, and Masao Asami from the Greek for twice over, for a second magnesium analog of allanite being described.
This page provides mineralogical data about Dissakisite-(Ce).


Classification of Dissakisite-(Ce)Hide

Approved
Approval Year:
1990
9.BG.05b

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in octahedral [6] and greater coordination
58.2.1a.5

58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
2 : Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
16.13.8

16 : Silicates Containing Aluminum and other Metals
13 : Aluminosilicates of the rare earths

Physical Properties of Dissakisite-(Ce)Hide

Hardness:
6½ - 7 on Mohs scale

Optical Data of Dissakisite-(Ce)Hide

Type:
Biaxial (+)
RI values:
nα = 1.735 nβ = 1.741 nγ = 1.758
2V:
Measured: 64° , Calculated: 62°
Max Birefringence:
δ = 0.023
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v medium

Chemical Properties of Dissakisite-(Ce)Hide

Formula:
{CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)
IMA Formula:
CaCe(Al2Mg)[Si2O7][SiO4]O(OH)

Crystallography of Dissakisite-(Ce)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Cell Parameters:
a = 8.905(1) Å, b = 5.684(1) Å, c = 10.113(1) Å
β = 114.62(2)°
Ratio:
a:b:c = 1.567 : 1 : 1.779
Unit Cell V:
465.35 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of Dissakisite-(Ce)Hide

Synonyms of Dissakisite-(Ce)Hide

Other Language Names for Dissakisite-(Ce)Hide

Relationship of Dissakisite-(Ce) to other SpeciesHide

Other Members of this group:
Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Allanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Allanite-(Nd){CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Allanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon.
Androsite-(Ce){Mn2+REE}{AlAlMn2+}(SiO4)(Si2O7)O(OH)
Dissakisite-(La){CaLa}{Al2Mg}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriakasakaite-(La){CaLa}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriallanite-(Ce){CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriallanite-(La){CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriandrosite-(Ce){Mn2+REE}{Fe3+AlMn2+}(SiO4)(Si2O7)O(OH)
Ferriandrosite-(La){MnLa}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Manganiakasakaite-(La){CaLa}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Manganiandrosite-(Ce){Mn2+Ce}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Manganiandrosite-(La){Mn2+La}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon.
Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
UM1989-32-SiO:AlCaFeHREE(Ca0.50.5)(Ce,La,Nd)Fe3+Al2(Si2O7)(SiO4)O(OH)
Unnamed (Ce- and Mn-analogue of Ferriakasakaite-(La)){Ca,(Ce,La,Nd),Mn2+}2(Mn3+,Fe3+,Al)Al(Mn2+,Mg)(Si2O7)(SiO4)O(OH)
Unnamed (Mg-analogue of Ferriallanite-(Ce)){CaCe}{(Fe3+,Al)Al(Mg,Fe2+)}(Si2O7)(SiO4)O(OH)
Unnamed (Mn-analogue of Ferriallanite-(Ce)){CaCe}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)
Vanadoallanite-(La){CaLa}{V3+AlFe2+}(Si2O7)(SiO4)O(OH) Mon. 2/m : P21/m
Vanadoandrosite-(Ce){Mn2+Ce}{V3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Dolomite2 photos of Dissakisite-(Ce) associated with Dolomite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.BG.XCyprineCa19Cu2+(Al10Mg2)Si18O68(OH)10Tet. 4/m : P4/n
9.BG.05bAllanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon.
9.BG.05aClinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Dollaseite-(Ce){CaCe}{MgAlMg}(Si2O7)(SiO4)(OH)FMon. 2/m : P21/m
9.BG.05aEpidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Hancockite{CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)Mon.
9.BG.05Khristovite-(Ce){CaCe}{MgAlMn2+}(Si2O7)(SiO4)(OH)FMon. 2/m : P21/m
9.BG.05Mukhinite{Ca2}{Al2V3+}(Si2O7)(SiO4)O(OH)Mon.
9.BG.05Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)Mon.
9.BG.05bManganiandrosite-(La){Mn2+La}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon.
9.BG.05Tawmawite{Ca2}{(Al,Fe3+,Cr)3}(Si2O7)(SiO4)O(OH)
9.BG.05Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05bFerriallanite-(Ce){CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Niigataite{CaSr}{Al3}(Si2O7)(SiO4)O(OH)Mon. 2/m
9.BG.05Manganiandrosite-(Ce){Mn2+Ce}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Dissakisite-(La){CaLa}{Al2Mg}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Vanadoandrosite-(Ce){Mn2+Ce}{V3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05Epidote-(Sr){CaSr}{Al2Fe3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Nd){CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05bFerriallanite-(La){CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
9.BG.05bÅskagenite-(Nd){Mn2+Nd}{Al2Fe3+}(Si2O7)(SiO4)O2Mon. 2/m : P21/m
9.BG.10Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
9.BG.15MacfalliteCa2Mn3+3(SiO4)(Si2O7)(OH)3Mon.
9.BG.15SursassiteMn2+2Al3(SiO4)(Si2O7)(OH)3Mon. 2/m : P21/m
9.BG.20Julgoldite-(Fe2+)Ca2Fe2+Fe3+2(Si2O7)(SiO4)(OH)2 · H2OMon.
9.BG.20OkhotskiteCa2(Mn,Mg)(Mn3+,Al,Fe3+)2(Si2O7)(SiO4)(OH)2 · H2OMon.
9.BG.20Pumpellyite-(Fe2+)Ca2Fe2+Al2(Si2O7)(SiO4)(OH)2 · H2OMon.
9.BG.20Pumpellyite-(Fe3+)Ca2(Fe3+,Mg)(Al,Fe3+)2(Si2O7)(SiO4)(OH,O)2 · H2OMon.
9.BG.20Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2OMon.
9.BG.20Pumpellyite-(Mn2+)Ca2Mn2+Al2(Si2O7)(SiO4)(OH)2 · H2OMon.
9.BG.20ShuiskiteCa2MgCr2(Si2O7)(SiO4)(OH)2 · 2H2OMon.
9.BG.20Julgoldite-(Fe3+)Ca2Fe3+Fe3+2(Si2O7)(SiO4)O(OH) · H2OMon.
9.BG.20Pumpellyite-(Al)Ca2Al3(Si2O7)(SiO4)(OH,O)2 · H2OMon.
9.BG.20PoppiiteCa2(V3+,Fe3+,Mg)(V3+,Al)2(Si2O7)(SiO4)(OH,O)2 · H2OMon. 2/m : B2/m
9.BG.20Julgoldite-(Mg)Ca2MgFe3+2(Si2O7)(SiO4)(OH)2 · H2OMon.
9.BG.25GanomalitePb9Ca5Mn(Si2O7)4(SiO4)OHex.
9.BG.30RustumiteCa10(Si2O7)2(SiO4)(OH)2Cl2Mon.
9.BG.35Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
9.BG.35WiluiteCa19(Al,Mg)13(B,☐,Al)5(Si2O7)4(SiO4)10(O,OH)10Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
9.BG.35ManganvesuvianiteCa19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2(Si2O7)4(SiO4)10O(OH)9Tet. 4/m : P4/n
9.BG.35FluorvesuvianiteCa19(Al,Mg,Fe2+)13(Si2O7)4(SiO4)10O(F,OH)9Tet. 4/mmm (4/m 2/m 2/m)
9.BG.40Vyuntspakhkite-(Y)(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7
9.BG.45DellaiteCa6Si3O11(OH)2Tric.
9.BG.50Gatelite-(Ce)CaCe3Al2(Al,Mg)(Mg,Fe2+,Al)(Si2O7)(SiO4)3(O,F)(OH,O)2Mon. 2/m : P21/b
9.BG.55Västmanlandite-(Ce)Ce3CaMg2Al2Si2O15(OH)2FMon. 2/m : P21/m

Related Minerals - Dana Grouping (8th Ed.)Hide

58.2.1a.1Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
58.2.1a.2Allanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
58.2.1a.3Allanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon.
58.2.1a.4Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
58.2.1a.6Dollaseite-(Ce){CaCe}{MgAlMg}(Si2O7)(SiO4)(OH)FMon. 2/m : P21/m
58.2.1a.7Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
58.2.1a.8Hancockite{CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)Mon.
58.2.1a.9Khristovite-(Ce){CaCe}{MgAlMn2+}(Si2O7)(SiO4)(OH)FMon. 2/m : P21/m
58.2.1a.10Mukhinite{Ca2}{Al2V3+}(Si2O7)(SiO4)O(OH)Mon.
58.2.1a.11Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
58.2.1a.12Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.13.1Vyuntspakhkite-(Y)(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7
16.13.2Törnebohmite-(Ce)(Ce,La)2Al(SiO4)2(OH)
16.13.3Törnebohmite-(La)(La,Ce)2Al(SiO4)2(OH)
16.13.4Allanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon.
16.13.5Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
16.13.6Dollaseite-(Ce){CaCe}{MgAlMg}(Si2O7)(SiO4)(OH)FMon. 2/m : P21/m

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.

References for Dissakisite-(Ce)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
New Minerals (1997), New Minerals 1990-1994.
Grew, E.S., Essene, E.J., Peacor, D.R., Su, Shu-Chun, and Asami, M. (1991): Dissakisite-(Ce), a new member of the epidote group and the Mg analogue of allanite-(Ce), from Antarctica. American Mineralogist: 76: 1990-1997.
Rouse, R. C. and Peacor, D. R. (1993): The crystal structure of dissakisite-(Ce), the Mg analogue of allanite-(Ce). Canadian Mineralogist 31, 153-157.
Jian-Jun Yang, and Masaki Enami (2003): Chromian dissakisite-(Ce) in a garnet lherzolite from the Chinese Su-Lu UHP metamorphic terrane: Implications for Cr incorporation in epidote-group minerals and recycling of REE into the Earth’s mantle. American Mineralogist, 88, 604–610.
Hoshino, M., Kimata, M., Nishida, N., Shimizu, M. (2008): Crystal chemical significance of chemical zoning in dissakisite-(Ce). Phys. Chem. Minerals 35, 59-70.
Hoshino, M., Kimata, M., Nishida, N., Shimizu, M. (2010): Dissakisite-(Ce) chemical composition: some implications for its origin. Phys. Chem. Minerals 37, 255-263.

Internet Links for Dissakisite-(Ce)Hide

Localities for Dissakisite-(Ce)Hide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Antarctica (TL)
 
  • Eastern Antarctica
    • Queen Maud Land
      • Sør Rondane Mts
Grew, E. S., Essene, E. J., Peacor, D. R., Su, S. C. and Asami, M. (1991): Dissakisite-(Ce), a new member of the epidote group and the magnesium analogue of allanite-(Ce), from Antarctica. American Mineralogist 76, 1990-1997.
China
 
  • Jiangsu Province
    • Lianyungang Prefecture
      • Donghai Co.
        • Zhimafang
AmMin 88:604-610
Finland
 
  • Eastern Finland Region
AmMin 88:604-610
France
 
  • Occitanie
    • Ariège
      • Luzenac
Hoshino, M., Kimata, M., Nishida, N., Shimizu, M. (2008): Crystal chemical significance of chemical zoning in dissakisite-(Ce). Phys. Chem. Minerals 35, 59-70.; Hoshino, M., Kimata, M., Nishida, N., Shimizu, M. (2010): Dissakisite-(Ce) chemical composition: some implications for its origin. Phys. Chem. Minerals 37, 255-263.
Romania
 
  • Harghita Co.
    • Ditrău (Ditró)
Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Yakutia)
      • Aldan Shield
        • Aldan
Pavel M. Kartashov data
Sweden
 
  • Värmland
    • Filipstad
      • Persberg district
Sandström, F., Lorin, T. & Strand, U. (2009): Geologi och mineralogi i Gåsgruvefältet, Filipstad. Litofilen. 26 (2): 16-38
The Swedish Museum of Natural History collection # 20040054
  • Västmanland
    • Norberg
Steffen Möckel probed (EDX 29/08/2005) - M.E. Ciriotti collection; Holtstam, D., Andersson, U.B. (2007): The REE minerals of the Bastnäs-type deposits, South-Central Sweden. Canadian Mineralogist. 45, 1073-1114
      • Röberg ore field
Grew et al. (1991): Dissakisite-(Ce), a New member of the epidote group and the Mg analogue of allanite-(Ce), from Antarctica. American Mineralogist, 76, 1990-1997.
USA
 
  • New York
    • Orange Co.
      • Town of Warwick
        • Edenville
          • Edenite Hill
Lupulescu, M.V., Rowe, R., Bailey, D., Hawkins, M. (2013) Chernikovite, Fe-free warwickite, and dissakisite-(Ce) from New York state, USA. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 20-21.
Mineral and/or Locality  
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