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Kaatialaite

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Shaft 371, Schlema-Hartenstein District, Erzgebirge, Saxony, Germany
© Thomas Witzke

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Formula:
Fe(H
 
2
AsO
 
4
)
 
3
·5H
 
2
O
System:MonoclinicColour:Pale grey, pale yellow, ...
Lustre:Vitreous
This page provides mineralogical data about Kaatialaite.

Classification of Kaatialaite

IMA status:Approved
Strunz 8th edition ID:7/C.05-10
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:39.3.9.1

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
3 : Miscellaneous
Hey's CIM Ref.:20.9.5

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

Type Locality:Kaatiala pegmatite, Kuortane, Vaasa, Länsi-Suomen Lääni, Finland
Year of Discovery:1984

Physical Properties of Kaatialaite

Lustre:Vitreous
Colour:Pale grey, pale yellow, white, greenish blue

Crystallography of Kaatialaite

Crystal System:Monoclinic

Optical Data of Kaatialaite

Type:Biaxial (+)
RI values: nα = 1.573 nβ = 1.574 nγ = 1.636
2V:Measured: 15° , Calculated: 16°
Maximum Birefringence:δ = 0.063

Chart 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(H
 
2
AsO
 
4
)
 
3
·5H
 
2
O
Essential elements:As, Fe, H, O
All elements listed in formula:As, Fe, H, O

Relationship of Kaatialaite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.CC.05Garyansellite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
(OH,O)·1.5H
 
2
O
8.CC.05Kryzhanovskite
MnFe
 
2
(PO
 
4
)
 
2
(OH)
 
2
·H
 
2
O
8.CC.05Landesite
Mn
2+
3-x
Fe
3+
x
[(OH)
 
x
|(PO
 
4
)
 
2
] · (3-x)H
 
2
O
8.CC.05Phosphoferrite
(Fe,Mn)
 
3
(PO
 
4
)
 
2
·3H
 
2
O
8.CC.05Reddingite
(Mn,Fe)
 
3
(PO
 
4
)
 
2
·3H
 
2
O
8.CC.15Leogangite
Cu
 
10
[(OH)
 
6
|SO
 
4
|(AsO
 
4
)
 
4
] · 8H
 
2
O
Related Minerals - Hey's Index Grouping:
20.9.1Angelellite
Fe
3+
4
[O
 
3
|(AsO
 
4
)
 
2
]
20.9.2Scorodite
Fe
3+
 
AsO
 
4
·2H
 
2
O
20.9.3Kaňkite
FeAsO
 
4
·3.5H
 
2
O
20.9.4Ferrisymplesite
Fe
3+
3
[(OH)
 
3
|(AsO
 
4
)
 
2
] · 5H
 
2
O
20.9.6Symplesite
Fe
2+
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.9.7Parasymplesite
Fe
2+
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.9.8Natropharmacosiderite
(Na,K)Fe
3+
4
[(OH)
 
4
|(AsO
 
4
)
 
3
] · 6-7H
 
2
O
20.9.9Pharmacosiderite
KFe
3+
4
[(OH)
 
4
|(AsO
 
4
)
 
3
] · 6-7H
 
2
O
20.9.10Kolfanite
Ca
 
2
Fe
3+
2
[O
 
2
|(AsO
 
4
)
 
3
] · 2H
 
2
O
20.9.11Arseniosiderite
Ca
 
2
Fe
3+
3
[O
 
2
|(AsO
 
4
)
 
3
] · 3H
 
2
O
20.9.12Yukonite
Ca
 
3
Fe
3+
 
[(OH)
 
3
|(AsO
 
4
)
 
2
] · 5H
 
2
O
20.9.13Dussertite
BaFe
3+
3
[(OH)
 
5
|(AsO
 
4
)
 
2
]
20.9.14Liskeardite
(Al,Fe
3+
 
)
 
3
[(OH)
 
6
|AsO
 
4
] · 5H
 
2
O
20.9.15Mapimite
Zn
 
2
Fe
3+
3
[(OH)
 
4
|(AsO
 
4
)
 
3
] · 10H
 
2
O
20.9.16Ogdensburgite
Ca
 
2
Fe
3+
4
(Zn,Mn
2+
 
)[(OH)
 
3
|(AsO
 
4
)
 
2
]
 
2
 · 6H
 
2
O
20.9.17Walentaite
H(Ca,Mn
2+
 
,Fe
2+
 
)Fe
3+
3
[(AsO
 
4
,PO
 
4
)]
 
4
 · 7H
 
2
O

Other Names for Kaatialaite

Synonyms:
IMA1982-021
German names:
Kaatialait
Russian names:
Каатиалаит
Spanish names:
Kaatialaita

Other Information

Health Warning: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:Raade, G.; Mladeck, M. H.; Kristiansen, R.; Din, V. K. (1984): Kaatialaite, a new ferric arsenate mineral from Finland. Am. Mineral. 69, 383-387.

Schmetzer, K. & Medenbach, O. (1986): Kaatialaite from Nieder-Beerbach, Odenwald - a second occurrence. Neues Jahrbuch fuer Mineralogie, Monatshefte 1986, 337-342.

Acta Crystallographica: B37: 1402-1405.

Journal of the Czech Geological Society, Prague (1997): 42(4): 26.

Internet Links for Kaatialaite

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    Localities for Kaatialaite

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    The 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.
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    (TL) indicates type locality. ? 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
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
            • Jáchymov (St Joachimsthal)
    		Lapis 2002(7/8), 47
    Finland
     
    • Länsi-Suomen Lääni
      • Vaasa
        • Kuortane
    		Amer.Min.(1984) 69, 383-387
    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
        • Nieder-Ramstadt
          • 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
    Mineral and/or Locality
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