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Kingsmountite

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Formula:
Ca4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2O
System:
Monoclinic
Colour:
Colorless to white, may ...
Hardness:
Name:
Named in 1979 by Pete J. Dunn, Donald R. Peacor, John S. White, and Robert A. Ramik after the type locality - Kings Mountain, Cleveland County, North Carolina, USA.
Isostructural with:
Fe(II) analogue of Montgomeryite.

Classification of Kingsmountite

Approved
8.DH.25

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
42.11.8.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
19.14.22

19 : Phosphates
14 : Phosphates of Fe and other metals
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Type Occurrence of Kingsmountite

Year of Discovery:
1979
Geological Setting of Type Material:
Phosphate mineralized fractures in granite pegmatite
Associated Minerals at Type Locality:

Physical Properties of Kingsmountite

Sub-Vitreous
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Colorless to white, may have a light tan to pale brown tinge
Streak:
White
Hardness (Mohs):
Tenacity:
Brittle
Density:
2.51 g/cm3 (Measured)    2.58 g/cm3 (Calculated)

Crystallography of Kingsmountite

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Space Group Setting:
C2
Cell Parameters:
a = 10.029Å, b = 24.461Å, c = 6.258Å
β = 91.16°
Ratio:
a:b:c = 0.41 : 1 : 0.256
Unit Cell Volume:
V 1,534.89 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Bladed crystals with pinacoidal forms dominant
X-Ray Powder Diffraction Data:
d-spacingIntensity
12.23 (50)
6.33 (30)
5.15 (100)
3.31 (30)
2.950 (40)
2.915 (30)
2.624 (60)

Optical Data of Kingsmountite

Type:
Biaxial (-)
RI values:
nα = 1.573 nβ = 1.581 nγ = 1.583
2V:
Measured: 62° , Calculated: 58°
Birefringence:
0.010
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
very weak
Optical Extinction:
Z^ length = 35°
Pleochroism:
Non-pleochroic

Chemical Properties of Kingsmountite

Formula:
Ca4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2O
Essential elements:
All elements listed in formula:

Relationship of Kingsmountite to other Species

Other Members of Group:
CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
SchooneriteZnMn2+Fe22+Fe3+(PO4)3(OH)2 · 9H2O
ZodaciteCa4Mn2+Fe43+(PO4)6(OH)4 · 12H2O
8.DH.05MinyuliteKAl2(PO4)2(OH,F) · 4H2O
8.DH.10LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2O
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15KeckiteCaMn2+Fe23+Fe23+(PO4)4(OH)3(H2O)7
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2O
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe22+}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe23+(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(NaMnMg){Na}{Mn3+}{Mg2}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe23+}(PO4)4(OH)2 · 8H2O
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2O
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2O
8.DH.20SegeleriteCa2 Mg2 Fe23+(PO4)4(OH)2 · 8H2O
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2O
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2O
8.DH.25CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
8.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
8.DH.25ZodaciteCa4Mn2+Fe43+(PO4)6(OH)4 · 12H2O
8.DH.30ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
8.DH.30KolfaniteCa2Fe33+O2(AsO4)3 · 2H2O
8.DH.30MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
8.DH.30PararobertsiteCa2Mn33+(PO4)3O2 · 3H2O
8.DH.30RobertsiteCa3Mn43+(PO4)3O2 · 3H2O
8.DH.30Sailaufite(Ca,Na,☐)2Mn33+(AsO4)2(CO3)O2 · 3H2O
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2O
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2O
8.DH.35Benyacarite(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2O
8.DH.40XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
8.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2O
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2O
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2O
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
8.DH.60BouazzeriteBi6(Mg,Co)11Fe143+(AsO4)18(OH)4O12 · 86H2O
19.14.1CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
19.14.2KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33
19.14.3Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3
19.14.4Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3
19.14.5Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3
19.14.6NatrodufréniteNaFe2+Fe53+(PO4)4(OH)6 · 2H2O
19.14.7LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
19.14.8Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
19.14.9BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2O
19.14.10Satterlyite(Fe2+,Mg,Fe3+)2(PO4)(OH,O)
19.14.11UshkoviteMgFe23+(PO4)2(OH)2 · 8H2O
19.14.12Garyansellite(Mg,Fe)3(PO4)2(OH,O) · 1.5H2O
19.14.13ThadeuiteCa(Mg,Fe2+)3(PO4)2(OH,F)2
19.14.14AnapaiteCa2Fe2+(PO4)2 · 4H2O
19.14.15XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
19.14.16CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
19.14.17MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
19.14.18MélonjosephiteCaFe2+Fe3+(PO4)2(OH)
19.14.19DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed ·
19.14.20CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
19.14.21SegeleriteCa2 Mg2 Fe23+(PO4)4(OH)2 · 8H2O
19.14.23VauxiteFe2+Al2(PO4)2(OH)2 · 6H2O
19.14.24MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
19.14.25ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
19.14.26SigloiteFe3+Al2(PO4)2(OH)3 · 7H2O
19.14.27CacoxeniteFe243+Al(PO4)17O6(OH)12 · 17H2O
19.14.28KoninckiteFe3+PO4 · 3H2O
19.14.29Lazulite(Mg,Fe2+)Al2(PO4)2(OH)2
19.14.30ScorzaliteFe2+Al2(PO4)2(OH)2
19.14.31Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
19.14.32Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
19.14.33ZaïriteBiFe33+(PO4)2(OH)6

Other Names for Kingsmountite

Name in Other Languages:

Other Information

Not fluorescent in UV
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 Kingsmountite

Reference List:
American Mineralogist (1981): 66: 1275-1276.

Dunn, P.J., W.L. Roberts, T.J. Campbell, and P.B. Leavens (1983) Red montgomeryite and associated minerals from the Tip Top pegmatite with notes on kingsmountite and calcioferrite. Mineralogical Record, 14, 195-197.

Internet Links for Kingsmountite

Specimens:
The following Kingsmountite specimens are currently listed for sale on minfind.com.

Localities for Kingsmountite

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.
Australia
 
  • New South Wales
    • Westmoreland Co.
      • Oberon
Podgson RE, Osborne RAL, Colchester DM, Minerals of Jenolan Caves, New South Wales, Australia: Geological and Biological Interactions, Proceedings of the Linnean Society of New South Wales 134, 1-18.
Germany
 
  • Bavaria
    • Lower Bavaria
      • Zwiesel
        • Rabenstein
Collection Elmar Lackner
    • Upper Palatinate
      • Waidhaus
        • Hagendorf
http://www.berthold-weber.de/h_miner.htm
Wittern: "Mineralfundorte in Deutschland", 2001
  • Hesse
    • Odenwald
      • Heppenheim
        • Kirschhausen
A. Wittern: Mineralfundorte in Deutschland, Schweizerbart (Stuttgart), 2001
Mexico
 
  • Coahuila
    • Mun. de Cuatrociénegas
      • Cuatro Ciénegas (Cuatrociénegas de Carranza; Venustiano Carranza)
        • Limestone caves
Forti, P. et al. (2006): ACTA CARSOLOGICA 35/1, 79–98.
Portugal
 
  • Guarda District
    • Sabugal
      • Bendada
Schnorrer-Köhler (1991), Mineral Occurrences.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 121(2): 95-103(1992); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
USA
 
  • Nevada
    • Humboldt Co.
      • Osgood Mts
        • Potosi District
NBMG Spec. Pub. 31 Minerals of Nevada
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Canadian Mineralogist (1979): 17: 579-582.; Rocks and Minerals, (1985) 60:76-82; Carolina Geological Society Field Trip Guidebook 1981, 39-48
  • South Dakota
    • Custer Co.
      • Custer District
        • Fourmile
Rocks & Minerals: 75(3): 156-169.
Mineral and/or Locality  
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