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Kapundaite

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About KapundaiteHide

Formula:
NaCaFe4(PO4)4(OH)3 · 5H2O
Colour:
pale to golden yellow
Lustre:
Silky
Hardness:
3
Specific Gravity:
2.93
Crystal System:
Triclinic
Name:
Named for the type locality.
Structurally related to mélonjosephite.


Classification of KapundaiteHide

Approved
Approval Year:
2009
42.11.28.

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O

Physical Properties of KapundaiteHide

Silky
Transparency:
Transparent, Translucent
Colour:
pale to golden yellow
Streak:
yellow
Hardness:
Hardness Data:
Estimated
Cleavage:
None Observed
Density:
2.93(3) g/cm3 (Measured)    2.917 g/cm3 (Calculated)

Optical Data of KapundaiteHide

Type:
Uniaxial (+)
RI values:
nα = 1.717(3) nβ = 1.737(3) nγ = 1.790(3)
2V:
Calculated: 64.7°
Max Birefringence:
δ = 0.073
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Optical Extinction:
X = nearly colorless, Y = light brown, Z = pale brown; absorption: Y > Z > X.

Chemical Properties of KapundaiteHide

Formula:
NaCaFe4(PO4)4(OH)3 · 5H2O
IMA Formula:
CaNaFe3+4(PO4)4(OH)3 · 5H2O

Crystallography of KapundaiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.317(5) Å, b = 7.698(6) Å, c = 9.768(7) Å
α = 105.53(1)°, β = 99.24(2)°, γ = 90.09(2)°
Ratio:
a:b:c = 0.821 : 1 : 1.269
Unit Cell V:
451.2 ų
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.338Å(100)
7.442Å(37)
5.173Å(52)
3.828Å(45)
3.123Å(34)
2.817Å(33)
2.753Å(64)
2.417Å(48)

Type Occurrence of KapundaiteHide

Synonyms of KapundaiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Kapundaite associated with Goethiteα-Fe3+O(OH)
1 photo of Kapundaite associated with NatrodufréniteNaFe2+Fe3+5(PO4)4(OH)6 · 2H2O

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 KapundaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mills, S.J., Birch, W.D., Kampf, A.R., Christy, A.G., Pluth, J.J., Pring, A., Raudsepp, M., Chen, Yu-S. (2010): Kapundaite, a new phosphate species from Toms quarry, South Australia: description and structural relationship to mélonjosephite. American Mineralogist, 95, 754-760.

Internet Links for KapundaiteHide

Localities for KapundaiteHide

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 (TL)
 
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Kapunda
Mills, S.J., Birch, W.D., Kampf, A.R., Christy, A.G., Pluth, J.J., Pring, A., Raudsepp, M., Chen, Yu-S. (2010): Kapundaite, a new phosphate species from Toms quarry, South Australia: description and structural relationship to mélonjosephite. American Mineralogist, 95, 754-760.
France
 
  • Occitanie
    • Aveyron
      • Villefranche-de-Rouergue
        • La Capelle-Bleys
Gayraud, L., Gineste, C., Bernadi, G. & Johannet, J.-M. (2011) - Bleys et Puech de Compolibat: deux localités minéralogiques remarquables du massif de leucogranite de La Capelle-Bleys (Aveyron), Le Cahier des Micromonteurs, 111(1), 7-23
Italy
 
  • Trentino-Alto Adige
    • Trento Province (Trentino)
      • Rabbi
        • Ceresè
Vignola, P., Zucali, M., Rotiroti, N., Marotta, G., Risplendente, A., Pavese, A., ... & Bertoldi, G. (2018). The Chrysoberyl-and Phosphate-Bearing Albite Pegmatite of Malga Garbella, Val Di Rabbi, Trento Province, Italy. The Canadian Mineralogist, 56(4), 411-424.
USA
 
  • Maine
    • Oxford County
      • Greenwood
        • Uncle Tom Mountain
https://www.mindat.org/photo-1038755.html (photo of Emmons specimen) Very Rare Kapundaite just found at Emmons Quarry. Al U. Falster, MP2 Group, and MMGM Lab analyzed and id'ed. I just found this specimen in material I am going through. Sorry for poor image but it is deep in a tiny vug. You can see the the yellow straw like mineral. Photo by Lloyd W. Alexander https://www.mindat.org/photo-1038755.html (photo of Emmons specimen) Very Rare Kapundaite just found at Emmons Quarry. Al U. Falster, MP2 Group, and MMGM Lab analyzed and id'ed. I just found this specimen in material I am going through. Sorry for poor image but it is deep in a tiny vug. You can see the the yellow straw like mineral. Photo by Lloyd W. Alexander. 1st occurrence in USA. 4th in World. https://www.mindat.org/gm/39673; A. Falster analysis
 
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