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Pyrosmalite-(Mn)

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Formula:
(Mn,Fe)8Si6O15(OH,Cl)10
System:
Trigonal
Hardness:
Name:
Originally named manganpyrosmalite by By Clifford Frondel and Lawson H. Bauer for its manganese-dominant composition relative to the original pyrosmalite. Both pyrosmalites were later given suffixes, -(Mn) or -(Fe) by the IMA to indicated cation dominance in the chemical formula
Isostructural with:

Classification of Pyrosmalite-(Mn)

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.EE.10

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
72.4.1a.2

72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
4 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-, 6-, and 12-membered rings
17.3.14

17 : Silicates Containing other Anions
3 : Silicates with chloride (including aluminosilicates)
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http://www.mindat.org/min-2491.html
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First Recorded Occurrence of Pyrosmalite-(Mn)

Year of Discovery:
1953

Physical Properties of Pyrosmalite-(Mn)

Hardness (Mohs):

Crystallography of Pyrosmalite-(Mn)

Crystal System:
Trigonal
Cell Parameters:
a = 13.42Å, c = 7.16Å
Ratio:
a:c = 1 : 0.534
Unit Cell Volume:
V 1,116.73 ų (Calculated from Unit Cell)

Optical Data of Pyrosmalite-(Mn)

Type:
Uniaxial (-)
RI values:
nω = 1.680 nε = 1.640
Max Birefringence:
δ = 0.040
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Pyrosmalite-(Mn)

Formula:
(Mn,Fe)8Si6O15(OH,Cl)10
Essential elements:
All elements listed in formula:
Common Impurities:
As,Zn,Mg,Ca,H20

Relationship of Pyrosmalite-(Mn) to other Species

Series:
Forms a series with Pyrosmalite-(Fe) (see here)
Other Members of Group:
Friedelite(Mn,Fe)8Si6O15(OH,Cl)10
Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2
Nelenite(Mn,Fe)16(Si12O30)(OH)14[As33+O6(OH)3]
Pyrosmalite-(Fe)(Fe,Mn)8Si6O15(OH,Cl)10
Schallerite(Mn,Fe)16Si12As3O36(OH)17
9.EE.05BementiteMn7Si6O15(OH)8
9.EE.10BrokenhilliteMn8Si6O15(OH)10
9.EE.10Pyrosmalite-(Fe)(Fe,Mn)8Si6O15(OH,Cl)10
9.EE.10Friedelite(Mn,Fe)8Si6O15(OH,Cl)10
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2
9.EE.15Nelenite(Mn,Fe)16(Si12O30)(OH)14[As33+O6(OH)3]
9.EE.15Schallerite(Mn,Fe)16Si12As3O36(OH)17
9.EE.20Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
9.EE.20TuperssuatsiaiteNa2Fe3Si8O20(OH)2 · 4H2O
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2O
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2O
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2O
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2O
9.EE.25Kalifersite(K,Na)5Fe73+Si20O50(OH)6 · 12H2O
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
9.EE.30TungusiteCa4Fe2Si6O15(OH)6
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2O
9.EE.40NatrosiliteNa2Si2O5
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2O
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2O
9.EE.55RaiteNa4Mn32+Ti0.25Si8O20(OH)2 · 10H2O
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2O
9.EE.65Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2O
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2O
9.EE.70ZeophylliteCa13(Si10O28)F10 · 6H2O
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4H2O
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2·3H2O
17.3.1RustumiteCa10(Si2O7)2(SiO4)(OH)2Cl2
17.3.2ZunyiteAl13Si5O20(OH,F)18Cl
17.3.3SodaliteNa8(Al6Si6O24)Cl2
17.3.4MarialiteNa4Al3Si9O24Cl
17.3.5TugtupiteNa4(AlBeSi4O12)Cl
17.3.6EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
17.3.7AlluaiviteNa19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2O
17.3.8NasonitePb6Ca4(Si2O7)3Cl2
17.3.9AsisitePb7SiO9Cl2
17.3.10JagoitePb18Fe43+[Si4(Si,Fe3+)6][Pb4Si16(Si,Fe)4]O82Cl6
17.3.11Friedelite(Mn,Fe)8Si6O15(OH,Cl)10
17.3.12Pyrosmalite-(Fe)(Fe,Mn)8Si6O15(OH,Cl)10
17.3.13Pyrosmalite
17.3.16Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2
17.3.17TraskiteBa21Ca(Fe2+,Mn,Ti)4(Ti,Fe,Mg)12(Si12O36)(Si2O7)6(O,OH)30Cl6·14H2O
17.3.18MuiriteBa10Ca2Mn2+Ti[(OH,Cl,F)|HSi2O7]5
17.3.19VerplanckiteBa2(Mn,Fe,Ti)Si2O6(O,OH,Cl,F)2 · 3H2O or near

Other Names for Pyrosmalite-(Mn)

Name in Other Languages:

Other Information

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 Pyrosmalite-(Mn)

Reference List:
American Mineralogist (1953): 38: 755.

American Mineralogist (1956): 41: 581.

Canadian Mineralogist (1983): 21: 1-6.

Canadian Mineralogist (1993): 31: 695.

Internet Links for Pyrosmalite-(Mn)

Localities for Pyrosmalite-(Mn)

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia
 
  • New South Wales
    • Yancowinna Co.
Birch BH Book
M Willoughby collection
Domenico Preite specimen
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
Minerals of Iron Monarch, Glyn L. Francis
Canada
 
  • Northwest Territories
    • Mackenzie District
      • Great Bear Lake
        • Port Radium District
Mark Mauthner specimen, from Ty Balacko, 19 Jan 1990; Alfredo Petrov collection.
  • Ontario
    • Thunder Bay District
      • Gemmell Township
Can. Min. 31, 695
  • Québec
    • Nord-du-Québec
      • Matagami
Can. Min. 31, 695
China
 
  • Liaoning Province (Manchuria; Dongbei Region)
    • Chaoyang Prefecture
      • Chaoyang Co.
Yuanming Pan, Fleet, M.E., Barnett, R.L., and Yuan Chen (1993): The Canadian Mineralogist 31, 695-710.
    • Huludao Prefecture
      • Jianchang Co.
        • Bajiazi Zn-Pb-Ag deposit
Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
France
 
  • Provence-Alpes-Côte d'Azur
    • Alpes-de-Haute-Provence
      • Saint-Paul-sur-Ubaye
        • Maljasset
Bourbon M., Fonteilles M. (1972): Présence de pyrosmalite et de rhodonite dans un horizon manganésifère oxydé du Crétacé supérieur briançonnais. Bull. Soc. fr. Minéral. cristallogr., 95, 623-624.
Japan
 
  • Honshu Island
    • Kanto Region
      • Tochigi Prefecture
        • Kanuma City
Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan)
        • Nikko City
          • Ashio-machi
Introduction to Japanese Minerals (Geological Survey of Japan, 1970); Watanabe, T. and Kato, A. (1961) Manganpyrosmalite from the Kyurazawa mine, Tochigi prefecture. Mineralogical Journal, 3, #3, 130-138.
    • Tohoku Region
      • Iwate Prefecture
        • Kunohe-gun
          • Noda-mura
Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
Norway
 
  • Oslo
    • Grorud
      • Bånkall
Kvamsdal, L. O. & Husdal, T. A. (2014): Pyrosmalitt-(Mn) og pyrosmalitt-(Fe) fra Norge. Stein. 41 (2), 24-25
Romania
 
  • Suceava Co.
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
Russia
 
  • Urals Region
    • Southern Urals
      • Bashkortostan Republic (Bashkiria Republic)
        • Sibay
Brusnitsyn, A.I. (2006): Geology of Ore Deposits 48(3), 193-214.
Slovakia
 
  • Košice Region
    • Gelnica Co.
      • Bystrý Potok
Rojkovič, I. (2001): Geolines 13, 34-41.
    • Rožňava Co.
      • Rožňava (Rosenau; Rozsnyó)
        • Čučma
Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
Sweden
 
  • Värmland
    • Filipstad
No reference listed
      • Persberg district
        • Pajsberg
Nysten, P. (2004): Harstigen ett mineralogisk eldorado i Bergslagen. Norsk Bergverksmuseum Skrift 28: 5-13
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Engadin
      • Piz Corvatsch
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 267.
Turkey
 
  • Aegean Region
    • Denizli Province
      • Kale
Öztürk, H. (1997): Ore Geology Reviews 12, 187-203.
USA
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Ogdensburg
          • Sterling Hill
Frondel, C. & Bauer, : Am.Min.:38:755-760 (1953); Parker, F. J. & Guy, R.E.: The Picking Table:31(1):6-9 (1990); Dunn(1995):Pt4:478.
Mineral and/or Locality  
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