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Agrellite

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About AgrelliteHide

02770000015367868351244.jpg
Stuart O. Agrell
Formula:
NaCa2Si4O10F
Colour:
White to greyish or greenish white.
Lustre:
Pearly
Hardness:
Crystal System:
Triclinic
Name:
Named in honor of Stuart Olof Agrell (5 March 1913, Ruislip, Middlesex, UK – 29 January 1996), British mineralogist and meteoricist at Cambridge University. He was popular in the United Kingdom for his public television and radio appearances discussing the collection of lunar rocks and soils during the Apollo missions.
This page provides mineralogical data about Agrellite.


Classification of AgrelliteHide

Approved
Approval Year:
1973
First Published:
1976
9.DH.75

9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
70.1.1.4

70 : INOSILICATES Column or Tube Structures
1 : Column or Tube Structures with columnar silicate units
17.1.3

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)

Physical Properties of AgrelliteHide

Pearly
Transparency:
Transparent, Translucent
Comment:
Pearly on cleavages.
Colour:
White to greyish or greenish white.
Streak:
White
Hardness:
5½ on Mohs scale
Cleavage:
Perfect
Excellent on {110} and {110}, poor on {010}

Optical Data of AgrelliteHide

Type:
Biaxial (-)
RI values:
nα = 1.567 nβ = 1.579 nγ = 1.581
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v strong

Chemical Properties of AgrelliteHide

Formula:
NaCa2Si4O10F

Crystallography of AgrelliteHide

Crystal System:
Triclinic
Morphology:
Crystals elongated k [001], to 10 cm; platy aggregates.

Type Occurrence of AgrelliteHide

Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa;
University of Toronto, Toronto;
Royal Ontario Museum, Toronto, Canada, M34496;
Harvard University, Cambridge, Massachusetts, 117050; National Museum of Natural History, Washington, D.C., USA, 127007;
Cambridge Un
Geological Setting of Type Material:
In pegmatite lenses and pods and in mafic gneisses in a regionally metamorphosed agpaitic alkalic rock complex
Associated Minerals at Type Locality:
Reference:
Gittins, J., Bown, M.G., Sturman, D. (1976) Agrellite, a new rock-forming mineral in regionally metamorphosed agpaitic alkalic rocks. The Canadian Mineralogist: 14: 120-126.

Synonyms of AgrelliteHide

Other Language Names for AgrelliteHide

German:Agrellit
Italian:Agrellite
Latvian:Agrelīts
Spanish:Agrellita

Common AssociatesHide

AegirineNaFe3+Si2O6
EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2O
QuartzSiO2
Associated Minerals Based on Photo Data:
39 photos of Agrellite associated with EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
16 photos of Agrellite associated with VlasoviteNa2ZrSi4O11
14 photos of Agrellite associated with AlbiteNa(AlSi3O8)
12 photos of Agrellite associated with GittinsiteCaZrSi2O7
7 photos of Agrellite associated with CalciteCaCO3
6 photos of Agrellite associated with ThoriteTh(SiO4)
4 photos of Agrellite associated with Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
4 photos of Agrellite associated with BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2
4 photos of Agrellite associated with Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O
3 photos of Agrellite associated with AegirineNaFe3+Si2O6

Related Minerals - Nickel-Strunz GroupingHide

9.DH.05LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
9.DH.10OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2OMon.
9.DH.15HaradaiteSrVSi2O7Orth.
9.DH.15SuzukiiteBaVSi2O7Orth.
9.DH.20BatisiteBaNaNaTi2(Si4O12)O2Orth.
9.DH.20Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2Orth.
9.DH.25TaikaniteSr3BaMn2+2(Si4O12)O2Mon.
9.DH.30KrauskopfiteBaSi2O5 · 3H2OMon.
9.DH.35Balangeroite(Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40Mon.
9.DH.35GageiteMn21(Si4O12)2O3(OH)20Mon. 2/m
9.DH.40AenigmatiteNa4[Fe2+10Ti2]O4[Si12O36]Tric. 1 : P1
9.DH.40DorriteCa4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)Tric.
9.DH.40HøgtuvaiteCa4[Fe2+6Fe3+6]O4[Si8Be2Al2O36]Tric. 1 : P1
9.DH.40KrinoviteNa2Mg4Cr3+2(Si6O18)O2Tric.
9.DH.40Makarochkinite(Ca,Na)4[Fe2+8Fe3+2Ti2]O4[Si8Be2Al2O36]Tric. 1 : P1
9.DH.40RhöniteCa4[Mg8Fe3+2Ti2]O4[Si6Al6O36]Tric. 1 : P1
9.DH.40SerendibiteCa4[Mg6Al6]O4[Si6B3Al3O36]Tric. 1 : P1
9.DH.40WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]Tric. 1 : P1
9.DH.40WilkinsoniteNa2Fe2+4Fe3+2(Si6O18)O2Tric. 1 : P1
9.DH.45SapphirineMg4(Mg3Al9)O4[Si3Al9O36]Mon. 2/m : P21/b
9.DH.50Khmaralite(Mg,Al,Fe)16[(Al,Si,Be)12O36]O4Mon. 2/m : P21/b
9.DH.55Surinamite(Mg,Fe)3Al4BeSi3O16Mon.
9.DH.60Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5Mon.
9.DH.65HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13Tric.
9.DH.65Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44Tric.
9.DH.70JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.

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

70.1.1.1LitidioniteCuNaKSi4O10Tric.
70.1.1.2Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric.
70.1.1.3ManaksiteKNaMnSi4O10Tric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.1.1HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon.
17.1.4Fluorapophyllite-(Na)NaCa4(Si8O20)F · 8H2OOrth.
17.1.5Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mnc
17.1.6Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2OTet.
17.1.7HsianghualiteCa3Li2(Be3Si3O12)F2Iso. 4 3 2 : I41 3 2
17.1.8LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
17.1.9NorbergiteMg3(SiO4)(F,OH)2Orth. mmm (2/m 2/m 2/m)
17.1.10Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2Mon. 2/m : P21/b
17.1.11Humite(Mg,Fe2+)7(SiO4)3(F,OH)2Orth. mmm (2/m 2/m 2/m) : Pnma
17.1.12ClinohumiteMg9(SiO4)4F2Mon. 2/m : P21/b
17.1.13CanasiteK3Na3Ca5Si12O30(OH)4Mon.
17.1.14Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
17.1.15CuspidineCa4(Si2O7)(F,OH)2Mon. 2/m : P21/b
17.1.16BultfonteiniteCa2(HSiO4)F · H2OTric.
17.1.17ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
17.1.18Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)Tric.
17.1.19YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Orth.
17.1.20Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
17.1.21Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.50.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
17.1.22Hiortdahlite(Na,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4Tric.
17.1.23BurpaliteNa2CaZr(Si2O7)F2Mon.
17.1.24SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2Mon.
17.1.25Thorosteenstrupine(Ca,Th,Mn)3Si4O11F · 6H2O
17.1.26ZircophylliteK2NaFe2+7Zr2(Si4O12)2O2(OH)4FTric.
17.1.27JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FTric. 1 : P1
17.1.28RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1
17.1.29NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2Tet.
17.1.30SonoliteMn2+9(SiO4)4(OH)2Mon.

Fluorescence of AgrelliteHide

Fluoresces bright pink under LW UV and duller pink under SW UV.

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 AgrelliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gittins, J., Bown, M.G., Sturman, D. (1976) Agrellite, a new rock-forming mineral in regionally metamorphosed agpaitic alkalic rocks. The Canadian Mineralogist: 14: 120-126.
Fleischer, M., Mandarino, J.A. (1977) New mineral names. American Mineralogist: 62: 173-176.
Ghose, S., Wan, C. (1979) Agrellite, Na(Ca,RE)2Si4O10F: a layer structure with silicate tubes. American Mineralogist: 64: 563-572.
Rozhdestvenskaya, I.V., Nikishova, L.V. (1998) Crystal structure of Na(Ca,Sr)2Si4O10F strontium agrellite from Yakutian charoitites: agrellite polytypes. Crystallography Reports: 43: 589-597.

Internet Links for AgrelliteHide

Localities for AgrelliteHide

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.
Canada (TL)
 
  • Québec
    • Abitibi-Témiscamingue
      • Témiscamingue RCM
        • Les Lacs-du-Témiscamingue
GITTINS, J., BOWN, M.G. & STURMAN, D. (1976): Agrellite, a new rock-forming mineral in regionally metamorphosed agpaitic alkalic rocks. Canadian Mineralogist 14, 120-126.; Smithsonian Museum USNM NUMBER: 169743
China
 
  • Liaoning
    • Dandong
      • Kuandian County
MOU, B., & YAN, G. (1992). Geological features of Triassic alkaline and subalkaline igneous complexes in the Yan-Liao area. ACTA GEOLOGICA SINICA-ENGLISH EDITION, 5(4), 339-355. Saima Deposit Research Group. (1978). Uranium deposit in the Saima alkaline massif, Northeast China. Sci. Sinica, 21, 365-389. Wu, F. Y., Yang, Y. H., Marks, M. A., Liu, Z. C., Zhou, Q., Ge, W. C., ... & Markl, G. (2010). In situ U–Pb, Sr, Nd and Hf isotopic analysis of eudialyte by LA-(MC)-ICP-MS. Chemical Geology, 273(1-2), 8-34. Wu, B., Wang, R. C., Yang, J. H., Wu, F. Y., Zhang, W. L., Gu, X. P., & Zhang, A. C. (2015). Wadeite (K2ZrSi3O9), an alkali-zirconosilicate from the Saima agpaitic rocks in northeastern China: Its origin and response to multi-stage activities of alkaline fluids. Lithos, 224, 126-142.
Russia
 
  • Aldan Shield
    • Chara and Tokko Rivers Confluence
[Lapis 1993:4 p.13-20]
Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
        • Sirenevyi Kamen' Deposit
Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
  • Murmansk Oblast
Yakovenchuk, V. N., Ivanyuk, G., Pakhomovsky, Y. & Men'shikov, Y. (2005): Khibiny. Apatity & London (Laplandia Minerals in association with the Mineral. Soc. of GB & Ireland), 468 pp.
    • Lovozersky District
Pakhomovsky, Y. A., Ivanyuk, G. Y., & Yakovenchuk, V. N. (2014). Loparite-(Ce) in rocks of the Lovozero layered complex at Mt. Karnasurt and Mt. Kedykvyrpakhk. Geology of Ore Deposits, 56(8), 685-698.
Tajikistan
 
  • Districts of Republican Subordination
Agakhanov, A.A., Pautov, L.A., Uvarova, Y.A., Sokolova, E., Hawthorne, F.C., Karpenko, V.Y. (2008) Nalivkinite, Li2NaFe2+7Ti2(Si8O24)O2(OH)4F, a new mineral of the astrophyllite group from the Darai-Pioz Massif, Tadjikistan. New data on minerals: 43: 5-12.
USA
 
  • Wisconsin
    • Marathon Co.
Rocks and Minerals, (1987) 62:188-195
Rocks & Min.: 62: 190-193.
 
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