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Finnemanite

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About FinnemaniteHide

Formula:
Pb5(AsO3)3Cl
Colour:
Gray to black; pale olive-green in transmitted light.
Lustre:
Sub-Adamantine
Hardness:
Specific Gravity:
7.265
Crystal System:
Hexagonal
Name:
After K.J. Finneman, of Långban, Sweden, who found the first specimen.
This page provides mineralogical data about Finnemanite.


Classification of FinnemaniteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.JB.45

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
B : Arsenites, antimonites, bismuthites; with additional anions, without H2O
46.1.1.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO3)pZq
23.9

23 : Arsenites

Pronounciation of FinnemaniteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of FinnemaniteHide

Sub-Adamantine
Transparency:
Translucent, Opaque
Colour:
Gray to black; pale olive-green in transmitted light.
Hardness:
2½ on Mohs scale
Cleavage:
Distinct/Good
On {1011}, distinct
Density:
7.265 g/cm3 (Measured)    7.35 g/cm3 (Calculated)

Optical Data of FinnemaniteHide

Type:
Uniaxial (-)
RI values:
nω = 2.295 nε = 2.285
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of FinnemaniteHide

Formula:
Pb5(AsO3)3Cl
IMA Formula:
Pb5(As3+O3)3Cl

Crystallography of FinnemaniteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 10.322 Å, c = 7.055 Å
Ratio:
a:c = 1 : 0.683
Unit Cell V:
650.96 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals small, distorted, elongated parallel to [0001], exhibiting {1011} and {0001}; as crystalline crusts.

Type Occurrence of FinnemaniteHide

Place of Conservation of Type Material:
Swedish Museum of Natural History, Stockholm, Sweden.
Geological Setting of Type Material:
Crevices in Hematite in a metamorphosed Fe-Mn ore body.
Associated Minerals at Type Locality:

Other Language Names for FinnemaniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Lanarkite1 photo of Finnemanite associated with Lanarkite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JB.05Fetiasite(Fe3+,Fe2+,Ti)3(As2O5)O2Mon.
4.JB.10ManganarsiteMn3(As2O4)(OH)4
4.JB.15MagnussoniteMn10As6O18(OH,Cl)2Iso. m3m (4/m 3 2/m) : Ia3d
4.JB.15UM1984-09-AsO:ClHMnMn10As6O18(OH)ClTet. 4/mmm (4/m 2/m 2/m) : I41/acd
4.JB.20ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
4.JB.25NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
4.JB.30AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2Trig. 3m : P3c1
4.JB.35StenhuggariteCaFeSb(AsO3)2OTet.
4.JB.40TrigonitePb3Mn2+(AsO3)2(HAsO3)Mon. m
4.JB.50GebharditePb8(As2O5)2OCl6Mon.
4.JB.55DerbyliteFe3+4Ti3Sb3+O13(OH)Mon. 2/m : P21/m
4.JB.55Tomichite(V,Fe)4Ti3AsO13(OH)Mon.
4.JB.55Graeserite(Fe3+ ,Ti)4Ti3AsO13(OH)Mon.
4.JB.60Hemloite(Ti,V3+,Fe3+,Al)12(As3+,Sb3+)2O23(OH)Tric. 1 : P1
4.JB.65FreediteCu+Pb8(AsO3)2O3Cl5Mon. 2/m : B2/m
4.JB.70GeorgiadèsitePb4(AsO3)Cl4(OH)Mon.
4.JB.75Ekatite(Fe3+,Fe2+,Zn)12(AsO3)6(AsO3,HSiO4)2(OH)6Hex.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

23.2NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
23.3LeiteiteZn(As2O4)Mon. 2/m : P21/b
23.5Kuznetsovite(Hg+2)Hg2+(AsO4)ClIso. 2 3 : P21 3
23.6PaulmooreitePb2[As2O5]Mon. 2/m : P21/b
23.7EcdemitePb6Cl4(As2O7)Tet.
23.8HeliophyllitePb6Cl4(As2O7)Orth.
23.10GebharditePb8(As2O5)2OCl6Mon.
23.11Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth.
23.13RouseitePb2Mn2+[AsO3]2 · 2H2OTric.
23.14FreediteCu+Pb8(AsO3)2O3Cl5Mon. 2/m : B2/m
23.15ManganarsiteMn3(As2O4)(OH)4
23.17ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
23.18KaribibiteFe3+3(As3+O2)4(As3+2O5)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
23.19SchneiderhöhniteFe2+Fe3+3As3+5O13Tric. 1 : P1
23.20Lazarenkoite(Ca,Fe2+)Fe3+As3+3O7 · 3H2OOrth.
23.21StenhuggariteCaFeSb(AsO3)2OTet.
23.22Tomichite(V,Fe)4Ti3AsO13(OH)Mon.

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 FinnemaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Aminoff (1923) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 45: 160.
American Mineralogist (1923): 8: 230.
Aminoff and Parsons (1927) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 49: 438.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1038-1039.
Traill, R.J. and A.P. Sabina (1960) Catalogue of X-ray diffraction patterns and specimen mounts on file at the Geological Survey of Canada. Geological Survey of Canada, Paper 60-4, 37.
Effenberger, H. and F. Pertlik (1979) Die Kristallstruktur des Finnemanits, Pb5Cl(AsO3)3, mit einem Vergleich zum Strukturtyp des Chlorapatits, Ca5Cl(PO4)3. Tschermaks Mineralogische und Petrographische Mitteilungen, 26, 95–107 (in German with English abstract).
Elliott, P. (1991): Minerals from the Beltana mine, Puttapa, South Australia. Mineral. Rec. 22, 449-456.

Internet Links for FinnemaniteHide

Localities for FinnemaniteHide

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.
Australia
 
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
        • Leigh Creek
          • Puttapa
Elliott, P. (1991): Minerals from the Beltana mine, Puttapa, South Australia. Mineralogical Record 22, 449-456.
Germany
 
  • Saxony
    • Glauchau
      • Callenberg
Lapis, 16 (9), 13-26. Only presumed, not confirmed by any analytical data !
Sweden (TL)
 
  • Värmland
    • Filipstad
Geologiska Föreningens I Stockholm. Förhandlinger, Stockholm (1923): 45, 160; Rocks & Min.: 62:166; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1039; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
Mineral and/or Locality  
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