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Tungusite

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About TungusiteHide

Formula:
Ca4Fe2Si6O15(OH)6
Colour:
Yellow-green, grass-green
Lustre:
Pearly
Hardness:
2
Member of:
Name:
Named after its discovery locality, the right bank of the Lower Tunguska River, Eastern Siberia Region, Russia.

Classification of TungusiteHide

Approved
Approval Year:
1966
9.EE.30

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
78.5.9.1

78 : Unclassified Silicates
5 :
14.22.5

14 : Silicates not Containing Aluminum
22 : Silicates of Fe and Ca

Physical Properties of TungusiteHide

Pearly
Colour:
Yellow-green, grass-green
Hardness:

Optical Data of TungusiteHide

Type:
Uniaxial (-)

Chemical Properties of TungusiteHide

Formula:
Ca4Fe2Si6O15(OH)6
IMA Formula:
Ca14Fe2+9Si24O60(OH)22
Common Impurities:
Al,Mn,Mg,Na,H2O

Type Occurrence of TungusiteHide

Synonyms of TungusiteHide

Other Language Names for TungusiteHide

German:Tungusit
Spanish:Tungusita

Relationship of Tungusite to other SpeciesHide

Member of:
Other Members of this group:
CairncrossiteSr2Ca7–xNa2x(Si4O10)4(OH)2(H2O)15–x (with 0 ≤ x ≤ 1)Tric. 1 : P1
GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric.
OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Pectolite2 photos of Tungusite associated with Pectolite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.EE.05BementiteMn7Si6O15(OH)8Mon.
9.EE.10BrokenhilliteMn8Si6O15(OH)10Hex. 6mm : P63mc
9.EE.10Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
9.EE.10Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig.
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15Nelenite(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]Mon.
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteNa2Fe3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth.
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.EE.25Kalifersite(K,Na)5Fe3+7Si20O50(OH)6 · 12H2OTric.
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric.
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig.
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.40NatrosiliteNa2Si2O5Mon.
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth.
9.EE.55RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2OTrig.
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2·3H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.22.1HedenbergiteCaFe2+Si2O6Mon. 2/m : B2/b
14.22.2Pyroxferroite(Fe,Mn,Ca)SiO3Tric.
14.22.3 Ferro-akermaniteCa2FeSi2O7
14.22.4KirschsteiniteCaFe2+SiO4Orth. mmm (2/m 2/m 2/m) : Pnma
14.22.6Ferro-actinolite☐{Ca2}{Fe2+5}(Si8O22)(OH)2Mon.
14.22.7IlvaiteCaFe3+Fe2+2(Si2O7)O(OH)Orth. mmm (2/m 2/m 2/m)
14.22.8Julgoldite-(Fe2+)Ca2Fe2+Fe3+2(Si2O7)(SiO4)(OH)2 · H2OMon.
14.22.9AndraditeCa3Fe3+2(SiO4)3Iso. m3m (4/m 3 2/m) : Ia3d

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 TungusiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Doklady Akademii Nauk SSSR (1966) 171: 1167.
American Mineralogist (1967): 52: 927-928.
Mineralogical Magazine (1995): 59: 535-543.

Internet Links for TungusiteHide

Localities for TungusiteHide

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
 
  • Ontario
    • Thunder Bay District
      • MacGregor Township
Ann P.Sabina (1991), Rocks and Minerals for the Collector, Sudbury to Winnipeg. GSC Misc. Report 49. p.128
Russia
 
  • Eastern-Siberian Region
    • Krasnoyarsk Krai
      • Evenkia (Evenkiyskiy Autonomous okrug)
Mineralogical Magazine 59 (1995), 535
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Taymyrskiy Autonomous Okrug
        • Taimyr Peninsula
          • Putoran Plateau
Spiridonov, E.M., Gritsenko, Y.D., and Ponomarenko, A.I. (2008): Geology of Ore Deposits 50(8), 755-762.
USA
 
  • California
    • Los Angeles Co.
      • Santa Monica Mts
DeVito F. (1996) Micro Probe. Volume VIII, Number 4, pages 2-5.
    • Ventura Co.
      • Santa Monica Mts
http://www.mindat.org/article.php/801/Tungusite+in+the+Santa+Monica+Mountains,+Los+Angeles+and+Ventura+Counties+CA
Mineral and/or Locality  
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