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Finnemanite

A valid IMA mineral species - grandfathered

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Photos of Finnemanite (8)

Finnemanite Gallery Search Photos of Finnemanite

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Finnemanite

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Finnemanite

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

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About FinnemaniteHide

Karl J. Finneman

Formula:

Pb₅(AsO₃)₃Cl

Colour:

Gray to black; pale olive-green in transmitted light

Lustre:

Sub-Adamantine

Hardness:

2½

Specific Gravity:

7.265

Crystal System:

Hexagonal

Name:

Name in honor of Karl Johan Finneman (1880-1953), of Långban, Sweden, who found the first specimen.

Type Locality:

ⓘ Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

This page provides mineralogical data about Finnemanite.

Unique IdentifiersHide

Mindat ID:

1551

Long-form identifier:

mindat:1:1:1551:2

GUID
(UUID V4):

fb444d24-7064-469d-832a-6fd17d146cf4

IMA Classification of FinnemaniteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA Formula:

Pb₅(As³⁺O₃)₃Cl

First published:

1923

Classification of FinnemaniteHide

Strunz-mindat (2024):

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

Dana 8th ed.:

46.1.1.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)_m(XO₃)_pZ_q

Hey's CIM Ref.:

23.9

23 : Arsenites

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Fnn	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of FinnemaniteHide

Pronunciation:

Play	Recorded by	Country
	Jolyon Ralph	United Kingdom

Physical Properties of FinnemaniteHide

Lustre:

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:

n_ω = 2.295 n_ε = 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

Chemistry of FinnemaniteHide

Mindat Formula:

Pb₅(AsO₃)₃Cl

Elements listed:

As, Cl, O, Pb - search for minerals with similar chemistry

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 Å³ (Calculated from Unit Cell)

Morphology:

Crystals small, distorted, elongated parallel to [0001], exhibiting {1011} and {0001}; as crystalline crusts.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Temp (K)
0012024	Finnemanite	Effenberger H, Pertlik F (1977) Der strukturtyp von finnemanit, Pb5Cl(AsO3)3 Anzeiger der Osterreichische Akademie der Wissenschaften 114 209-211	1977	Langban, Varmland, Sweden	293
0012044	Finnemanite	Gabrielson O (1956) The crystal structure of finnemanite Pb5Cl(AsO3)3 Arkiv for Mineralogi och Geologi 2 1-8	1956	Langban, Varmland, Sweden	293
0015673	Finnemanite	Effenberger H, Pertlik F (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	1979	Langban, Varmland, Sweden	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Finnemanite'
loop_
_publ_author_name
'Effenberger H'
'Pertlik F'
_journal_name_full 'Anzeiger der Osterreichische Akademie der Wissenschaften'
_journal_volume 114 
_journal_year 1977
_journal_page_first 209
_journal_page_last 211
_publ_section_title
;
 Der strukturtyp von finnemanit, Pb5Cl(AsO3)3
;
_database_code_amcsd 0012024
_chemical_compound_source 'Langban, Varmland, Sweden'
_chemical_formula_sum 'Pb5 Cl As3 O9'
_cell_length_a 10.322
_cell_length_b 10.322
_cell_length_c 7.054
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 650.869
_exptl_crystal_density_diffrn      7.349
_symmetry_space_group_name_H-M 'P 63/m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x+y,-x,1/2-z'
  'x-y,x,1/2+z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  'x-y,x,-z'
  '-x+y,-x,z'
  '-y,x-y,1/2-z'
  'y,-x+y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Pb1   0.33333   0.66667   0.98980   0.02254
Pb2   0.26440   0.03630   0.25000   0.01381
Cl   0.00000   0.00000   0.00000   0.01191
As   0.41360   0.40070   0.25000   0.01102
O1   0.62000   0.46800   0.25000   0.01102
O2   0.36800   0.27800   0.06300   0.01406

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.03 Å	(100)
2.88 Å	(90)
3.35 Å	(60)
2.07 Å	(60)
1.957 Å	(50)
1.924 Å	(50)
1.352 Å	(50)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 7: Great Oxidation Event	<2.4
47d : [Arsenates, antimonates, selenates, bismuthinates]
47g : [Halogen-bearing surface weathering minerals]
47h : [Near-surface oxidized, dehydrated minerals]

Type Occurrence of FinnemaniteHide

Type Locality:

ⓘ Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

General Appearance of Type Material:

Thin olive-green flakes.

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:

Trigonite

Rouseite

Hematite

Other Language Names for FinnemaniteHide

German:Finnemanit

Russian:Финнеманит

Spanish:Finnemanita

Common AssociatesHide

Associated Minerals Based on Photo Data:

2 photos of Finnemanite associated with Lanarkite	Pb₂(SO₄)O
1 photo of Finnemanite associated with Chalcophanite	ZnMn⁴⁺₃O₇ · 3H₂O
1 photo of Finnemanite associated with Willemite	Zn₂SiO₄
1 photo of Finnemanite associated with Arsenic	As
1 photo of Finnemanite associated with Inesite	Ca₂(Mn,Fe)₇Si₁₀O₂₈(OH)₂ · 5H₂O

Related Minerals - Strunz-mindat Grouping Hide

4.JB.	Cuyaite	Ca₂Mn³⁺As³⁺₁₄O₂₄Cl	Mon. m
4.JB.	Brattforsite	Mn₁₉(AsO ₃)₁₂Cl₂	Mon. 2/m : B2/b
4.JB.05	Fetiasite	(Fe³⁺,Fe²⁺,Ti)₃(As₂O₅)O₂	Mon. 2/m : P2₁/m
4.JB.10	Manganarsite	Mn₃(As₂O₄)(OH)₄	Trig.
4.JB.15	Magnussonite	Mn²⁺₁₀(As³⁺O₃)₆(OH,Cl)₂	Iso. m3m (4/m 3 2/m) : Ia3d
4.JB.15	UM1984-09-AsO:ClHMn	Mn₁₀As₆O₁₈(OH)Cl	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
4.JB.20	Armangite	Mn²⁺₂₆(AsO₃)₁₄(HAsO₃)₄(CO₃)	Trig. 3 : P3
4.JB.25	Nanlingite	Na(Ca₅Li)Mg₁₂(AsO₃)₂[Fe(AsO₃)₆]F₁₄	Trig. 3m (3 2/m) : R3m
4.JB.30	Asbecasite	Ca₃(Ti,Sn⁴⁺)Be₂(AsO₃)₆(SiO₄)₂	Trig. 3m : P3c1
4.JB.35	Stenhuggarite	CaFeSb(AsO₃)₂O	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
4.JB.40	Trigonite	Pb₃Mn²⁺(AsO₃)₂(HAsO₃)	Mon. m
4.JB.50	Gebhardite	Pb₈(As₂O₅)₂OCl₆	Mon. 2/m : P2₁/b
4.JB.55	Derbylite	Fe³⁺₄Ti₃Sb³⁺O₁₃(OH)	Mon. 2/m : P2₁/m
4.JB.55	Tomichite	(V,Fe)₄Ti₃AsO₁₃(OH)	Mon. 2/m : P2₁/m
4.JB.55	Graeserite	Fe³⁺₄Ti₃As³⁺O₁₃(OH)	Mon. 2/m : B2/m
4.JB.60	Hemloite	(Ti,V³⁺,Fe³⁺,Al)₁₂(As³⁺,Sb³⁺)₂O₂₃(OH)	Tric. 1 : P1
4.JB.65	Freedite	Cu⁺Pb₈(AsO₃)₂O₃Cl₅	Mon. 2/m : B2/m
4.JB.70	Georgiadesite	Pb₄(As³⁺O₃)Cl₄(OH)	Mon. 2/m : P2₁/b
4.JB.75	Ekatite	(Fe³⁺,Fe²⁺,Zn)₁₂(AsO₃)₆(AsO₃,HSiO₄)₂(OH)₆	Hex. 6mm : P6₃mc
4.JB.75	Szklaryite	◻Al₆BAs³⁺₃O₁₅	Orth. mmm (2/m 2/m 2/m) : Pbcm
4.JB.85	Lepageite	Mn²⁺₃(Fe³⁺₇Fe²⁺₄)O₃[Sb³⁺₅As³⁺₈O₃₄]	Tric. 1 : P1
4.JB.90	Bianchiniite	Ba₂(TiV)(As₂O₅)₂OF	Tet. 4/mmm (4/m 2/m 2/m) : I4/mcm

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.

Internet Links for FinnemaniteHide

mindat.org URL:

https://www.mindat.org/min-1551.html
Please feel free to link to this page.

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External Links:

Look for Finnemanite on Webmineral

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Look for Finnemanite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for FinnemaniteHide

Reference List:

Aminoff, G. (1923). Finnemanit, ett nytt blyarsenit från Långban (Finnemanite, a new lead arsenite from Långban). Geologiska Föreningens i Stockholm Förhandlingar, 45, 160-163.

Wherry, E.T. (1923). New minerals: new species. American Mineralogist, 8, 230-231.

Aminoff and Parsons (1927). Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm, 49, 438.

Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York.pp.1038-1039

Traill, R.J., Sabina, A.P. (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., Pertlik, F. (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. The Mineralogical Record, 22, 449-456.

Bahfenne, Silmarilly, Rintoul, Llew, Langhof, Jörgen, Frost, Ray L. (2011) Single-crystal Raman spectroscopy of natural finnemanite and comparison with its synthesised analogue. Journal of Raman Spectroscopy, 42 (12). 2119-2125 doi:10.1002/jrs.2973

(2023) Finnemanite. Handbook of Mineralogy. Mineralogical Society of America

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Australia
Queensland Croydon Shire Croydon Goldfield ⓘ Federation deposit	Parbhakar-Fox (2016)
ⓘ La Perouse deposit	Parbhakar-Fox (2016)
South Australia Flinders Ranges North Flinders Ranges Leigh Creek Puttapa ⓘ Beltana Mine ?	Muller (1972) +1 other reference

Finland
Kymenlaakso Kotka ⓘ Topaz quarry	Ilkka Mikkola collection

Germany
Saxony Zwickau District Callenberg ⓘ Callenberg North open cut No. 1 ?	Leonhardt et al. (1991)

Sweden (TL)
Värmland County Filipstad Långban Ore District ⓘ Långban Mine (TL)	Geologiska Föreningens I Stockholm. Förhandlinger (1923) +3 other references
ⓘ Anrikningsverk dump	Nysten (2003)
ⓘ Garden dump	Öhman (2003)
ⓘ Hindenburg working	Göran Åberg (1986)

Finnemanite

About FinnemaniteHide

Unique IdentifiersHide

IMA Classification of FinnemaniteHide

Classification of FinnemaniteHide

Mineral SymbolsHide

Pronunciation of FinnemaniteHide

Physical Properties of FinnemaniteHide

Optical Data of FinnemaniteHide

Chemistry of FinnemaniteHide

Crystallography of FinnemaniteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of FinnemaniteHide

Other Language Names for FinnemaniteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for FinnemaniteHide

References for FinnemaniteHide

Localities for FinnemaniteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide