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Rouseite

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Formula:
Pb2Mn2+[AsO3]2 · 2H2O
Colour:
Yellow orange
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
5.73 (Calculated)
Crystal System:
Triclinic
Name:
For Dr. Roland Rouse of University of Michigan
This page provides mineralogical data about Rouseite.


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Classification of RouseiteHide

Approved
Approval Year:
1984
4.JC.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
C : Arsenites, antimonites, bismuthites; without additional anions, with H2O
45.1.2.2

45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
23.13

23 : Arsenites

Physical Properties of RouseiteHide

Vitreous
Colour:
Yellow orange
Streak:
Light yellow
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
{010} and {110}
Density:
5.73 g/cm3 (Calculated)

Optical Data of RouseiteHide

Type:
Biaxial (-)
RI values:
nα = 1.800 nγ = 1.900
2V:
Measured: 46°
Birefringence:
Estimated to be 0.070
Max Birefringence:
δ = 0.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v
Comments:
RI alpha is estimated to be between 1.8-1.9. The mineral reacted with fluids having RI greater than 1.78.

Chemical Properties of RouseiteHide

Formula:
Pb2Mn2+[AsO3]2 · 2H2O
IMA Formula:
Pb2Mn2+(AsO3)2 · 2H2O

Crystallography of RouseiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 6.36 Å, b = 7.29 Å, c = 5.54 Å
α = 97.3°, β = 114.2°, γ = 106°
Ratio:
a:b:c = 0.872 : 1 : 0.76
Unit Cell V:
216.60 ų (Calculated from Unit Cell)

Type Occurrence of RouseiteHide

Place of Conservation of Type Material:
Smithsonian Institution. Specimen # NMNH 94942
Geological Setting of Type Material:
In a secondary fracture cutting calcite-hausmannite ore.

Synonyms of RouseiteHide

Other Language Names for RouseiteHide

German:Rouseit
Spanish:Rouseita

Related Minerals - Nickel-Strunz GroupingHide

4.JC.05CafarsiteCa5.9Mn1.7Fe3Ti3(AsO3)12 · 4-5H2OIso. m3 (2/m 3) : Pn3
4.JC.10Lazarenkoite(Ca,Fe2+)Fe3+As3+3O7 · 3H2OOrth.
4.JC.20Vajdakite[(Mo6+O2)2(H2O)2As3+2O5] · 3H2OMon.

Related Minerals - Dana Grouping (8th Ed.)Hide

45.1.2.1TrigonitePb3Mn2+(AsO3)2(HAsO3)Mon. m

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.
23.9FinnemanitePb5(AsO3)3ClHex. 6/m : P63/m
23.10GebharditePb8(As2O5)2OCl6Mon.
23.11Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth.
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+3[As5O13]Tric. 1 : P1
23.20Lazarenkoite(Ca,Fe2+)Fe3+As3+3O7 · 3H2OOrth.
23.21StenhuggariteCaFeSb(AsO3)2OTet.
23.22Tomichite(V,Fe)4Ti3AsO13(OH)Mon.

Fluorescence of RouseiteHide

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 RouseiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1986): 71: 1034-1036.

Internet Links for RouseiteHide

Localities for RouseiteHide

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.
Sweden (TL)
 
  • Värmland
    • Filipstad
Amer.Min.(1986) 71, 1034-1036; Rocks & Min.: 62:166; 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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