Finnemanite (original) (raw)
A valid IMA mineral species - grandfathered
About FinnemaniteHide
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Colour:
Gray to black; pale olive-green in transmitted light
Name:
Name in honor of Karl Johan Finneman (1880-1953), of Långban, Sweden, who found the first specimen.
This page provides mineralogical data about Finnemanite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1551:2
IMA Classification of FinnemaniteHide
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Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Pb5(As3+O3)3Cl
Classification of FinnemaniteHide
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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
Mineral SymbolsHide
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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
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Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of FinnemaniteHide
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Transparency:
Translucent, Opaque
Colour:
Gray to black; pale olive-green in transmitted light
Cleavage:
Distinct/Good
On {1011}, distinct
Density:
7.265 g/cm3 (Measured) 7.35 g/cm3 (Calculated)
Optical Data of FinnemaniteHide
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RI values:
_n_ω = 2.295 _n_ε = 2.285
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of FinnemaniteHide
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Mindat Formula:
Pb5(AsO3)3Cl
Crystallography of FinnemaniteHide
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Class (H-M):
6/m - Dipyramidal
Cell Parameters:
a = 10.322 Å, c = 7.055 Å
Unit Cell V:
650.96 ų (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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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | 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 | 0 | 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 | 0 | 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 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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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
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Type Occurrence of FinnemaniteHide
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General Appearance of Type Material:
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
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 4.JB. | Cuyaite | Ca2Mn3+As3+14O24Cl | Mon. m |
|---|---|---|---|
| 4.JB. | Brattforsite | Mn19(AsO 3)12Cl2 | Mon. 2/m : _B_2/b |
| 4.JB.05 | Fetiasite | (Fe3+,Fe2+,Ti)3(As2O5)O2 | Mon. 2/m : _P_21/m |
| 4.JB.10 | Manganarsite | Mn3(As2O4)(OH)4 | Trig. |
| 4.JB.15 | UM1984-09-AsO:ClHMn | Mn10As6O18(OH)Cl | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a c d |
| 4.JB.15 | Magnussonite | Mn2+10(As3+O3)6(OH,Cl)2 | Iso. m_3_m _(_4/_m_32/m ) : I a_3_d |
| 4.JB.20 | Armangite | Mn2+26(AsO3)14(HAsO3)4(CO3) | Trig. 3 : _P_3 |
| 4.JB.25 | Nanlingite | Na(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.JB.30 | Asbecasite | Ca3(Ti,Sn4+)Be2(AsO3)6(SiO4)2 | Trig. 3_m_ : _P_3_c_1 |
| 4.JB.35 | Stenhuggarite | CaFeSb(AsO3)2O | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a m d |
| 4.JB.40 | Trigonite | Pb3Mn2+(AsO3)2(HAsO3) | Mon. m |
| 4.JB.50 | Gebhardite | Pb8(As2O5)2OCl6 | Mon. 2/m : _P_21/b |
| 4.JB.55 | Graeserite | Fe3+4Ti3As3+O13(OH) | Mon. 2/m : _B_2/m |
| 4.JB.55 | Tomichite | (V,Fe)4Ti3AsO13(OH) | Mon. 2/m : _P_21/m |
| 4.JB.55 | Derbylite | Fe3+4Ti3Sb3+O13(OH) | Mon. 2/m : _P_21/m |
| 4.JB.60 | Hemloite | (Ti,V3+,Fe3+,Al)12(As3+,Sb3+)2O23(OH) | Tric. 1 : _P_1 |
| 4.JB.65 | Freedite | Cu+Pb8(AsO3)2O3Cl5 | Mon. 2/m : _B_2/m |
| 4.JB.70 | Georgiadesite | Pb4(As3+O3)Cl4(OH) | Mon. 2/m : _P_21/b |
| 4.JB.75 | Szklaryite | ◻Al6BAs3+3O15 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c m |
| 4.JB.75 | Ekatite | (Fe3+,Fe2+,Zn)12(AsO3)6(AsO3,HSiO4)2(OH)6 | Hex. 6_m_ m : P_63_m c |
| 4.JB.85 | Lepageite | Mn2+3(Fe3+7Fe2+4)O3[Sb3+5As3+8O34] | Tric. 1 : _P_1 |
| 4.JB.90 | Bianchiniite | Ba2(TiV)(As2O5)2OF | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m c m |
Other InformationHide
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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
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References for FinnemaniteHide
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Reference List:
Localities for FinnemaniteHide
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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
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