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Kaatialaite

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Formula:
Fe(H2AsO4)3 · 5H2O
The water content appears to be variable (Raade et al., 1984); the synthetic compound has 5H2O.
Colour:
Pale grey, pale yellow, white, pale blue, greenish blue
Lustre:
Earthy
Specific Gravity:
2.64
Crystal System:
Monoclinic
Name:
Named by G. Raade, M.H. Mladeck, R. Kristiansen, and V.K. Din in 1984 for the type locality of Kaatiala pegmatite, Finland.
This page provides mineralogical data about Kaatialaite.


Classification of Kaatialaite

Approved
First Published:
1984
8.CC.10

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
C : With only medium-sized cations, RO4:H2O = 1:1.5
39.3.9.1

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
3 : Miscellaneous
20.9.5

20 : Arsenates (also arsenates with phosphate, but without other anions)
9 : Arsenates of Fe

Physical Properties of Kaatialaite

Earthy
Transparency:
Translucent
Colour:
Pale grey, pale yellow, white, pale blue, greenish blue
Density:
2.64 g/cm3 (Measured)    2.64 g/cm3 (Calculated)
Comment:
Measured was with synthetic material

Optical Data of Kaatialaite

Type:
Biaxial (+)
RI values:
nα = 1.573 nβ = 1.574 nγ = 1.636
2V:
Measured: 15° , Calculated: 16°
Max Birefringence:
δ = 0.063
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of Kaatialaite

Formula:
Fe(H2AsO4)3 · 5H2O

The water content appears to be variable (Raade et al., 1984); the synthetic compound has 5H2O.
IMA Formula:
Fe3+(H2AsO4)3 · 5H2O

Crystallography of Kaatialaite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 15.25 Å, b = 19.60 Å, c = 4.72 Å
β = 91.8°
Ratio:
a:b:c = 0.778 : 1 : 0.241
Unit Cell V:
1,410.11 ų (Calculated from Unit Cell)
Morphology:
Acicular; powder coatings.
Comment:
Space group (P21/n) and cell data for synthetic material (Boudjada & Guitel, 1981). Raade et al. (1984) suggest space group P21 or P21/m. Water content appears to vary, and therefore also unit-cell parameters (Raade et al., 1984).

Type Occurrence of Kaatialaite

General Appearance of Type Material:
Acicular aggregates and powdery coatings on lollingite.
Place of Conservation of Type Material:
Mineralogical-Geological Museum, University of Oslo, Oslo, Norway.
The Natural History Museum, London, England.
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:

Synonyms of Kaatialaite

Other Language Names for Kaatialaite

Common Associates

Associated Minerals Based on Photo Data:
Claudetite7 photos of Kaatialaite associated with Claudetite on mindat.org.
Arsenic6 photos of Kaatialaite associated with Arsenic on mindat.org.
Arsenolite5 photos of Kaatialaite associated with Arsenolite on mindat.org.
Scorodite4 photos of Kaatialaite associated with Scorodite on mindat.org.
Safflorite2 photos of Kaatialaite associated with Safflorite on mindat.org.
Proustite1 photo of Kaatialaite associated with Proustite on mindat.org.
Quartz1 photo of Kaatialaite associated with Quartz on mindat.org.
Argentopyrite1 photo of Kaatialaite associated with Argentopyrite on mindat.org.

Related Minerals - Nickel-Strunz Grouping

8.CC.05Garyansellite(Mg,Fe)3(PO4)2(OH,O) · 1.5H2O
8.CC.05Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3
8.CC.05LandesiteMn2+3-xFe3+x(PO4)2(OH)x · (3-x)H2O
8.CC.05Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
8.CC.05Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
8.CC.15LeogangiteCu10(AsO4)4(SO4)(OH)6 · 8H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

20.9.1AngelelliteFe3+4(AsO4)2O3
20.9.2ScoroditeFe3+AsO4 · 2H2O
20.9.3KaňkiteFeAsO4 · 3.5H2O
20.9.4FerrisymplesiteFe3+3(AsO4)2(OH)3 · 5H2O
20.9.6SymplesiteFe2+3(AsO4)2 · 8H2O
20.9.7ParasymplesiteFe2+3(AsO4)2 · 8H2O
20.9.8Natropharmacosiderite(Na,K)Fe3+4(AsO4)3(OH)4 · 6-7H2O
20.9.9PharmacosideriteKFe3+4(AsO4)3(OH)4 · 6-7H2O
20.9.10KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2O
20.9.11ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2O
20.9.12YukoniteCa3Fe3+(AsO4)2(OH)3 · 5H2O
20.9.13DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6
20.9.14Liskeardite[(Al,Fe)32(AsO4)18(OH)42(H2O)22] · 52H2O
20.9.15MapimiteZn2Fe3+3(AsO4)3(OH)4 · 10H2O
20.9.16OgdensburgiteCa2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2O
20.9.17WalentaiteH(Ca,Mn2+,Fe2+)Fe3+3(AsO4,PO4)4 · 7H2O

Other Information

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 Kaatialaite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Boudjada, A., Guitel, J.C. (1981) Structure cristalline d'un orthoarséniate acide de fer(III) pentahydraté: Fe(H2AsO4)3·5H2O. Acta Crystallographica: B37: 1402-1405.
Raade, G., Mladeck, M.H., Kristiansen, R., Din, V.K. (1984) Kaatialaite, a new ferric arsenate mineral from Finland. American Mineralogist: 69: 383-387.
Schmetzer, K., Medenbach, O. (1986) Kaatialaite from Nieder-Beerbach, Odenwald - a second occurrence. Neues Jahrbuch für Mineralogie, Monatshefte: 1986: 337-342.
Ondruš, P., Veselovský, F., Hloušek, J., Skála, R., Vavřín, I., Frýda, J., Čejka, J., Gabašová, A. (1997) Secondary minerals of the Jáchymov (Joachimsthal) ore district. Journal of the Czech Geological Society, 42, 3-69.

Internet Links for Kaatialaite

mindat.org URL:
https://www.mindat.org/min-2126.html
Please feel free to link to this page.

Localities for Kaatialaite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Horní Slavkov (Schlaggenwald)
Plašil J, Sejkora J, Ondruš P, Veselovský F, Beran P, Goliáš V (2006): Supergene minerals in the Horní Slavkov uranium ore district, Czech Republic. Journal of the Czech Geological Society 51, 149-158.
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
          • Jáchymov (St Joachimsthal)
Lapis 2002(7/8), 47
Sehrig, M. & Dietel, J. (2011): Silber, Uran, Arsen und Heilquellen: Auf Mineraliensuche in Jáchymov, einem der ältesten Bergwerke der Welt. Lapis 36 (7-8), 67-71; 86.
Finland (TL)
 
  • Western and Inner Finland Region
    • Kuortane
Raade et al.(1984): Kaatialaite, a new ferric arsenate mineral from Finland. American Mineralogist. 69, 383-387
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Nantiat
        • Vaulry
          • Vaulry Mines
Patrice Queneau Collection
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Schenkenzell
        • Wittichen
          • Burgfelsen
No reference listed
          • Heubach Valley
No reference listed
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
  • Hesse
    • Odenwald
      • Mühltal
        • Nieder-Beerbach
Schmetzer, K. & Medenbach, O. (1986): Kaatialaite from Nieder-Beerbach, Odenwald - a second occurrence. Neues Jahrbuch fuer Mineralogie, Monatshefte 1986, 337-342.
  • Saxony
    • Erzgebirge
      • Marienberg District
        • Lauta
Wittern: "Mineralfundorte in Deutschland", 2001
      • Schlema-Hartenstein District
Lapis 1994(10), 36-39
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German). [identification announced; no description given yet]
Spain
 
  • Galicia
    • A Coruña (La Coruña)
      • Santa Comba
Kankita y Kaatialaita de las Minas de Varilongo (Santa Comba, La Coruña, España) DOI: 10.7597/acopios2171-7788.2012.7
USA
 
  • Utah
    • Tooele Co.
      • Deep Creek Mts
        • Gold Hill District (Clifton District)
          • Gold Hill
Mineralogical Magazine 1992 56 : 71-73
Mineral and/or Locality  
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