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Krautite

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About KrautiteHide

François Kraut
Formula:
Mn(HAsO4) · H2O
Colour:
rose red, rose pink, to brownish red
Lustre:
Resinous, Dull
Hardness:
3 - 4
Specific Gravity:
3.30
Crystal System:
Monoclinic
Member of:
Name:
Named by François Fontan, Marcel Orliac, and François Permingeat in 1975 in honor of François Kraut [born February 8, 1907 in Pinkafo, Hungary (today Pinkafeld, Austria) - died August 28, 1983 in Paris, France], mineralogist of the Musée Nationale d'Histoire Naturelle, Paris, France.
This page provides mineralogical data about Krautite.


Classification of KrautiteHide

Approved
8.CB.15

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
39.1.3.1

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
1 : A[HXO4]·xH2O
20.8.7

20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn

Physical Properties of KrautiteHide

Resinous, Dull
Transparency:
Translucent
Colour:
rose red, rose pink, to brownish red
Hardness:
3 - 4 on Mohs scale
Hardness Data:
Estimated
Comment:
Hardness less than 4
Tenacity:
Brittle
Cleavage:
Perfect
{010} perfect micaceous; {-101} good, {101} poor
Density:
3.30 g/cm3 (Measured)    3.27 g/cm3 (Calculated)
Comment:
American Mineralogist 64:1248 (1979) structure

Optical Data of KrautiteHide

Type:
Biaxial (+)
RI values:
nα = 1.620 nβ = 1.639 nγ = 1.686
2V:
Measured: 60° to 70°, Calculated: 68°
Birefringence:
0.066
Max Birefringence:
δ = 0.066
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong
Optical Extinction:
Z ^ {-101} = 16°; X = b; elongation (+).
Pleochroism:
Non-pleochroic

Chemical Properties of KrautiteHide

Formula:
Mn(HAsO4) · H2O
IMA Formula:
Mn(AsO3OH) · H2O

Crystallography of KrautiteHide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
P21
Cell Parameters:
a = 8.012(2) Å, b = 15.956(4) Å, c = 6.801(2) Å
β = 96.60(3)°
Ratio:
a:b:c = 0.502 : 1 : 0.426
Unit Cell V:
863.67 ų (Calculated from Unit Cell)
Z:
8
Comment:
For synthetic crystal. Strong P21/n pseudosymmetry.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.99 (90)
4.88 (40)
3.86 (100)
3.30 (100)
3.27 (100)
3.19 (90)
2.86 (40)
2.73 (60)
Comments:
ICDD 29-888 (synthetic); 33-895

Type Occurrence of KrautiteHide

Synonyms of KrautiteHide

Other Language Names for KrautiteHide

German:Krautit
Spanish:Krautita

Relationship of Krautite to other SpeciesHide

Member of:
Other Members of this group:
YvoniteCu(HAsO4) · 2H2OTric.

Related Minerals - Nickel-Strunz GroupingHide

8.CB.05SerrabrancaiteMnPO4 · H2OMon. 2/m : B2/b
8.CB.10Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2OMon. 2/m : B2/b
8.CB.10SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2OMon. 2/m : B2/b
8.CB.10VillyaelleniteMnMn2Ca2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
8.CB.10UM1997-09-AsO:CaHMgZn(Mg,Ca,Zn)5(AsO4)2(HAsO4)2 · 4H2OMon.
8.CB.10NyholmiteCd3Zn2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
8.CB.10MiguelromeroiteMnMn2Mn2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
8.CB.15FluckiteCaMn2+(HAsO4)2 · 2H2OTric. 1 : P1
8.CB.20Cobaltkoritnigite(Co,Zn)(HAsO4) · H2OTric. 1 : P1
8.CB.20KoritnigiteZn(HAsO4) · H2OTric. 1 : P1
8.CB.25YvoniteCu(HAsO4) · 2H2OTric.
8.CB.30GeminiteCu(HAsO4) · H2OTric.
8.CB.35SchubneliteFe3+VO4 · H2OTric.
8.CB.40RadovaniteCu2Fe3+(AsO4)(HAs3+O3)2 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.CB.45KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMon.
8.CB.50KolovratiteNixZny(VO4)0.67(x+y) · nH2O
8.CB.55IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.
8.CB.60BurgessiteCo2(H2O)4[AsO3(OH)]2(H2O)Mon. 2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.8.1SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P2/m
20.8.2EveiteMn2+2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
20.8.3ArsenoclasiteMn2+5(AsO4)2(OH)4Orth.
20.8.4FlinkiteMn2+2Mn3+(AsO4)(OH)4Orth.
20.8.5JarosewichiteMn2+3Mn3+(AsO4)(OH)6Orth. 2 2 2
20.8.6AllactiteMn2+7(AsO4)2(OH)8Mon. 2/m : P21/b
20.8.8SynadelphiteMn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
20.8.9SterlinghilliteMn3(AsO4)2 · 4H2OTric. 1 : P1
20.8.10GeigeriteMn2+5(AsO4)2(HAsO4)2 · 10H2OTric.
20.8.11Akrochordite(Mn2+,Mg)5(AsO4)2(OH)4 · 4H2OMon. 2/m : P21/b
20.8.12Manganohörnesite(Mn,Mg)3(AsO4)2 · 8H2OMon. 2/m : P2/m
20.8.13FluckiteCaMn2+(HAsO4)2 · 2H2OTric. 1 : P1
20.8.14BrandtiteCa2(Mn2+,Mg)(AsO4)2 · 2H2OMon. 2/m : P21/b
20.8.15ParabrandtiteCa2Mn2+(AsO4)2 · 2H2OTric.
20.8.16WallkilldelliteCa2Mn2+3(AsO4)2(OH)4 · 9H2OHex.
20.8.17Berzeliite(NaCa2)Mg2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
20.8.18ManganberzeliiteNaCa2Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
20.8.19Magnesiochlorophoenicite(Mg,Mn)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
20.8.20VillyaelleniteMnMn2Ca2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
20.8.21Hematolite(Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23Trig. 3 : R3
20.8.22GrischuniteNaCa2Mn2+5Fe3+(AsO4)6 · 2H2OOrth.

Fluorescence of KrautiteHide

Not fluorescent

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 KrautiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Fontan, F., Orliac, M., Permingeat, F. (1975): La krautite MnHAsO4·H2O, une nouvelle espèce minérale. Bulletin de la Société Française de Minéralogie et de Cristallographie, 98, 78-84. [Abs. in American Mineralogist (1976): 61: 503]
Catti, M., Franchini-Angela, M. (1979): Krautite, Mn(H2O)(AsO3OH): crystal structure, hydrogen bonding and relations with haidingerite and pharmacolite. American Mineralogist, 64, 1248-1254.
Beneke, K. & Lagaly, G. (1981): Krautite, MnHAsO4·H2O – an intracrystalline reactive mineral. Am. Mineral., 66, 432–435.
Buckley, A.M., Bramwell, S.T., Day, P. (1990): Intercalation reactions of krautite, HMnAsO4.H2O. American Mineralogist, 75, 1140-1146.

Internet Links for KrautiteHide

Localities for KrautiteHide

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
 
  • New South Wales
    • Clive Co.
      • Clive
Ashley, P.M. & Lottermoser, B. G. (1999): Arsenic contamination at the Mole River mine, northern New South Wales. Australian Journal of Earth Sciences, 46, 861-874.
Chile
 
  • Atacama Region
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga district
Samples analysed by Tony Kampf of LAC Mineralogical Museum, USA; Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Nash, B. P., Dini, M., & Jenkins, R. A. (2013). Joteite, Ca2CuAl [AsO4][AsO3 (OH)] 2 (OH) 2· 5H2O, a new arsenate with a sheet structure and unconnected acid arsenate groups. Mineralogical Magazine, 77(6), 2811-2823.; Kampf, A. R., Mills, S. J., Nash, B. P., Dini, M., & Molina Donoso, A. A. (2015). Tapiaite, Ca5Al2 (AsO4) 4 (OH) 4· 12H2O, a new mineral from the Jote mine, Tierra Amarilla, Chile. Mineralogical Magazine, 79(2), 345-354.
analysed material from a german Museum collection
Czech Republic
 
  • Karlovy Vary Region
    • Krušné Hory Mts (Erzgebirge)
      • Jáchymov District (St Joachimsthal)
        • Jáchymov (St Joachimsthal)
Lapis 2002(7/8), 52
Japan
 
  • Hokkaido
    • Sapporo
島倉広至, 三浦貴生, 浜根大輔, 松枝大治, & 三浦裕行. (2015). 北海道手稲鉱山産 Te, Bi, As 鉱物. 北海道大学地球物理学研究報告, 78, 19-35.
Romania (TL)
 
  • Hunedoara Co.
    • Deva
Am. Min. 61, 503 (1976)
  • Maramureș Co.
Handbook for Mineralogy, v. 4
Mineral and/or Locality  
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