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Kingsmountite

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Formula:
Ca
 
4
(Fe
2+
 
,Mn
2+
 
)Al
 
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
System:MonoclinicColour:Colorless to white, may ...
Hardness:
Member of:Montgomeryite Group
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:Montgomeryite


Fe(II) analogue of Montgomeryite.

Classification of Kingsmountite

IMA status:Approved
Strunz 8th edition ID:7/D.31-20
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:42.11.8.2

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

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

Type Locality:Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Year of Discovery:1979
Geological Setting of type material:Phosphate mineralized fractures in granite pegmatite
Associated Minerals at type locality:
MitridatiteMangangordoniteBirnessiteAlbite

Physical Properties of Kingsmountite

Lustre: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 (measured):2.51 g/cm3
Density (calculated):2.58 g/cm3

Crystallography of Kingsmountite

Crystal System:Monoclinic
Class (H-M):2 - Sphenoidal
Space Group:B2 {B1 1 2} {C2} {C1 2 1}
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:
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
Maximum Birefringence:δ = 0.010

Chart 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:
Ca
 
4
(Fe
2+
 
,Mn
2+
 
)Al
 
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
Simplified for copy/paste:Ca4(Fe2+,Mn2+)Al4(PO4)6(OH)4·12H2O
Essential elements:Al, Ca, Fe, H, O, P
All elements listed in formula:Al, Ca, Fe, H, Mn, O, P

Relationship of Kingsmountite to other Species

Member of:Montgomeryite Group
Other Members of Group:

- +
Calcioferrite
Ca
 
2
Fe
3+
2
(PO
 
4
)
 
3
(OH) · 7H
 
2
O
Montgomeryite
Ca
 
4
MgAl
 
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
Schoonerite
ZnMn
2+
 
Fe
2+
2
Fe
3+
 
(PO
 
4
)
 
3
(OH)
 
2
· 9H
 
2
O
Zodacite
Ca
 
4
Mn
2+
 
Fe
3+
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DH.05Minyulite
KAl
 
2
(PO
 
4
)
 
2
(OH,F) · 4H
 
2
O
8.DH.10Leucophosphite
KFe
3+
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
8.DH.10Spheniscidite
(NH
 
4
,K)(Fe
3+
 
,Al)
 
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
8.DH.10Tinsleyite
KAl
 
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
8.DH.15Jahnsite-(CaMnFe)
{Ca}{Mn
2+
 
}{Fe
2+
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Jahnsite-(CaMnMg)
{Ca}{Mn
2+
 
}{(Mg,Fe
2+
 
)
 
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Jahnsite-(CaMnMn)
{Ca}{Mn
2+
 
}{Mn
2+
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Keckite
CaMn
2+
 
Fe
3+
2
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
3
(H
 
2
O)
 
7
8.DH.15Rittmannite
{(Mn
2+
 
,Ca)}{Mn
2+
 
}{(Fe
2+
 
,Mn
2+
 
,Mg)
 
2
}{(Al,Fe
3+
 
)
 
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Whiteite-(CaFeMg)
{Ca}{(Fe
2+
 
,Mn
2+
 
)}{Mg
 
2
}{Al
 
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Whiteite-(CaMnMg)
{Ca}{Mn
2+
 
}{Mg
 
2
}{Al
 
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Whiteite-(MnFeMg)
{(Mn
2+
 
,Ca)}{(Fe
2+
 
,Mn
2+
 
)}{Mg
 
2
}{Al
 
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Jahnsite-(MnMnMn)
{Mn
2+
 
}{Mn
2+
 
}{Mn
2+
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Kaluginite
(Mn
2+
 
,Ca)MgFe
3+
 
(PO
 
4
)
 
2
(OH) · 4H
 
2
O
8.DH.15Jahnsite-(CaFeFe)
{Ca}{Fe
2+
 
}{Fe
2+
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Jahnsite-(NaFeMg)
NaFe
3+
 
Mg
 
2
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Jahnsite-(NaMnMg)
{Na}{Mn
3+
 
}{Mg
 
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.15Jahnsite-(CaMgMg)
{Ca}{Mg}{Mg
 
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.20Manganosegelerite
(Mn
2+
 
,Ca)(Mn
2+
 
,Fe
2+
 
,Mg)Fe
3+
 
(PO
 
4
)
 
2
(OH) · 4H
 
2
O
8.DH.20Overite
CaMgAl(PO
 
4
)
 
2
(OH) · 4H
 
2
O
8.DH.20Segelerite
Ca
 
2
Mg
 
2
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
8.DH.20Wilhelmvierlingite
CaMnFe
3+
 
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
8.DH.20Juonniite
CaMgSc(PO
 
4
)
 
2
(OH) · 4H
 
2
O
8.DH.25Calcioferrite
Ca
 
2
Fe
3+
2
(PO
 
4
)
 
3
(OH) · 7H
 
2
O
8.DH.25Montgomeryite
Ca
 
4
MgAl
 
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
8.DH.25Zodacite
Ca
 
4
Mn
2+
 
Fe
3+
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
8.DH.30Arseniosiderite
Ca
 
2
Fe
3+
3
(AsO
 
4
)
 
3
O
 
2
· 3H
 
2
O
8.DH.30Kolfanite
Ca
 
2
Fe
3+
2
(AsO
 
4
)
 
3
O
 
2
· 2H
 
2
O
8.DH.30Mitridatite
Ca
 
2
Fe
3+
3
(PO
 
4
)
 
3
O
 
2
· 3H
 
2
O
8.DH.30Pararobertsite
Ca
 
2
Mn
3+
3
(PO
 
4
)
 
3
O
 
2
· 3H
 
2
O
8.DH.30Robertsite
Ca
 
3
Mn
3+
4
(PO
 
4
)
 
3
O
 
2
· 3H
 
2
O
8.DH.30Sailaufite
(Ca,Na,☐)
 
2
Mn
3+
3
(AsO
 
4
)
 
2
(CO
 
3
)O
 
2
· 3H
 
2
O
8.DH.35Mantienneite
KMg
 
2
Al
 
2
Ti(PO
 
4
)
 
4
(OH)
 
3
· 15H
 
2
O
8.DH.35Paulkerrite
K(Mg,Mn
2+
 
)
 
2
(Fe
3+
 
,Al,Ti,Mg)
 
2
Ti(PO
 
4
)
 
4
(OH)
 
3
· 15H
 
2
O
8.DH.35Benyacarite
(H
 
2
O,K)
 
2
(Mn
2+
 
,Fe
2+
 
)
 
2
(Fe
3+
 
,Ti)
 
2
Ti(PO
 
4
)
 
4
(O,F)
 
2
· 14H
 
2
O
8.DH.40Xanthoxenite
Ca
 
4
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 3H
 
2
O
8.DH.45Mahnertite
NaCu
 
3
(AsO
 
4
)
 
2
Cl · 5H
 
2
O
8.DH.50Andyrobertsite
KCdCu
 
5
(AsO
 
4
)
 
4
(H
 
2
AsO
 
4
) · 2H
 
2
O
8.DH.50Calcioandyrobertsite
KCaCu
 
5
(AsO
 
4
)
 
4
(H
 
2
AsO
 
4
) · 2H
 
2
O
8.DH.55Englishite
K
 
3
Na
 
2
Ca
 
10
Al
 
15
(PO
 
4
)
 
21
(OH)
 
7
· 26H
 
2
O
8.DH.60Bouazzerite
Bi
 
6
(Mg,Co)
 
11
Fe
3+
14
(AsO
 
4
)
 
18
(OH)
 
4
O
 
12
· 86H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.14.1Cyrilovite
NaFe
3+
3
(PO
 
4
)
 
2
(OH)
 
4
· 2H
 
2
O
19.14.2Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
· 3H
 
2
O
19.14.3Rosemaryite
(Na,Ca,Mn)(Mn,Fe
2+
 
)(Fe
3+
 
,Mg)Al(PO
 
4
)
 
3
19.14.4Wyllieite
(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
 
4
)
 
3
19.14.5Ferrowyllieite
(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO
 
4
)
 
3
19.14.6Natrodufrénite
NaFe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.7Leucophosphite
KFe
3+
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
19.14.8Spheniscidite
(NH
 
4
,K)(Fe
3+
 
,Al)
 
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
19.14.9Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.10Satterlyite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
2
(PO
 
4
)(OH,O)
19.14.11Ushkovite
MgFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
19.14.12Garyansellite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
(OH,O) · 1.5H
 
2
O
19.14.13Thadeuite
Ca(Mg,Fe
2+
 
)
 
3
(PO
 
4
)
 
2
(OH,F)
 
2
19.14.14Anapaite
Ca
 
2
Fe
2+
 
(PO
 
4
)
 
2
· 4H
 
2
O
19.14.15Xanthoxenite
Ca
 
4
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 3H
 
2
O
19.14.16Calcioferrite
Ca
 
2
Fe
3+
2
(PO
 
4
)
 
3
(OH) · 7H
 
2
O
19.14.17Mitridatite
Ca
 
2
Fe
3+
3
(PO
 
4
)
 
3
O
 
2
· 3H
 
2
O
19.14.18Mélonjosephite
CaFe
2+
 
Fe
3+
 
(PO
 
4
)
 
2
(OH)
19.14.19Delvauxite
CaFe
 
4
(PO
 
4
,SO
 
4
)
 
2
(OH)
 
8
· 4-6H
 
2
O not confirmed ·
19.14.20Collinsite
Ca
 
2
(Mg,Fe
2+
 
)(PO
 
4
)
 
2
· 2H
 
2
O
19.14.21Segelerite
Ca
 
2
Mg
 
2
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
19.14.23Vauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
19.14.24Metavauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
19.14.25Paravauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
19.14.26Sigloite
Fe
3+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
3
· 7H
 
2
O
19.14.27Cacoxenite
Fe
3+
24
Al(PO
 
4
)
 
17
O
 
6
(OH)
 
12
· 17H
 
2
O
19.14.28Koninckite
Fe
3+
 
PO
 
4
· 3H
 
2
O
19.14.29Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
19.14.30Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
19.14.31Souzalite
(Mg,Fe
2+
 
)
 
3
(Al,Fe
3+
 
)
 
4
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.32Gormanite
(Fe
2+
 
,Mg)
 
3
(Al,Fe
3+
 
)
 
4
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.33Zaïrite
Bi(Fe
3+
 
,Al)
 
3
(PO
 
4
)
 
2
(OH)
 
6

Other Names for Kingsmountite

Synonyms:
IMA1978-041
Other Languages:
German:Kingsmountit
Spanish:Kingsmountita

Other Information

Fluorescence in UV light:Not fluorescent in UV
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 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

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Kingsmountite details from Handbook of Mineralogy (PDF)
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  • Localities for Kingsmountite

    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.
    (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.
    Germany
     
    • Bavaria
      • Lower Bavaria
        • Bavarian Forest
          • Zwiesel
            • Rabenstein
    Collection Elmar Lackner
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • 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.
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