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Tinsleyite

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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
© 2004 JBS

Show Tinsleyite Photos (5)
Formula:
KAl
 
2
[OH|(PO
 
4
)
 
2
] · 2H
 
2
O
System:MonoclinicColour:Deep red, colourless
Hardness:5
Name:Named after Franck C. Tinsley, Rapid City, South Dakota, for his preservation of rare and unusual specimens from the Tip Top pegmatite and other South Dakota localities.


Leucophosphite Group.

The Al analogue of leucophosphite.

Classification of Tinsleyite

IMA status:Approved 1983
Strunz 8th edition ID:7/D.27-10
Nickel-Strunz 10th (pending) edition ID:8.DH.10

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:42.11.6.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:19.8.6

19 : Phosphates
8 : Phosphates of Al and other metals
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Type Occurrence of Tinsleyite

Type Locality:Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Year of Discovery:1984

Physical Properties of Tinsleyite

Lustre:Vitreous
Colour:Deep red, colourless
Hardness (Mohs):5

Crystallography of Tinsleyite

Crystal System:Monoclinic
Cell Parameters:a = 9.6Å, b = 9.53Å, c = 9.54Å
β = 103.16°
Ratio:a:b:c = 1.007 : 1 : 1.001
Unit Cell Volume:V 849.87 ų (Calculated from Unit Cell)

Optical Data of Tinsleyite

Type:Biaxial (+)
RI values: nα = 1.591 nβ = 1.597 nγ = 1.604
2V:Measured: 86° , Calculated: 86°
Maximum Birefringence:δ = 0.013

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v distinct

Chemical Properties of Tinsleyite

Formula:
KAl
 
2
[OH|(PO
 
4
)
 
2
] · 2H
 
2
O
Essential elements:Al, H, K, O, P
All elements listed in formula:Al, H, K, O, P

Relationship of Tinsleyite to other Species

Member of Group:
Leucophosphite Group:
Related Minerals - Nickel-Strunz Grouping):

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

- +
19.8.1Montebrasite
LiAl[(OH,F)|PO
 
4
]
19.8.2Brazilianite
NaAl
 
3
[(OH)
 
2
|PO
 
4
]
 
2
19.8.3Wardite
NaAl
 
3
[(OH)
 
2
|PO
 
4
]
 
2
 · 2H
 
2
O
19.8.4Tancoite
LiNa
 
2
Al[OH|HPO
 
4
|PO
 
4
]
19.8.5Bertossaite
(Li,Na)
 
2
(Ca,Fe
2+
 
,Mn
2+
 
)Al
 
4
[(OH,F)|PO
 
4
]
 
4
19.8.7Taranakite
(K,NH
 
4
)Al
 
3
(PO
 
4
)
 
3
OH·9H
 
2
O
19.8.8Francoanellite
K
 
3
Al
 
5
[(HPO
 
4
)
 
3
|PO
 
4
]
 
2
 · 12H
 
2
O
19.8.9Gordonite
MgAl
 
2
[OH|PO
 
4
]
 
2
 · 8H
 
2
O
19.8.10Aldermanite
Mg
 
5
Al
 
12
[(OH)
 
11
|(PO
 
4
)
 
4
]
 
2
 · 32H
 
2
O
19.8.11Overite
CaMgAl[OH|(PO
 
4
)
 
2
] · 4H
 
2
O
19.8.12Montgomeryite
Ca
 
4
MgAl
 
4
[(OH)
 
2
|(PO
 
4
)
 
3
]
 
2
 · 12H
 
2
O
19.8.14Foggite
CaAl[(OH)
 
2
|PO
 
4
] · H
 
2
O
19.8.15Gatumbaite
CaAl
 
2
[OH|PO
 
4
]
 
2
 · H
 
2
O
19.8.16Crandallite
CaAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
19.8.17Matulaite
CaAl
 
18
[(OH)
 
5
|(PO
 
4
)
 
3
]
 
4
 · 28H
 
2
O
19.8.19Lehiite
19.8.20Millisite
(Na,K)CaAl
 
6
[(OH)
 
9
|(PO
 
4
)
 
4
] · 3H
 
2
O
19.8.21Englishite
K
 
3
Na
 
2
Ca
 
10
Al
 
15
[OH|(PO
 
4
)
 
3
]
 
7
 · 26H
 
2
O
19.8.22Kleemanite
ZnAl
 
2
[OH|PO
 
4
]
 
2
 · 3H
 
2
O
19.8.23Mantienneite
KMg
 
2
Al
 
2
Ti[(OH)
 
3
|(PO
 
4
)
 
4
] · 15H
 
2
O
19.8.24Paulkerrite
K(Mg,Mn
2+
 
)
 
2
(Fe
3+
 
,Al,Ti,Mg)
 
2
Ti(PO
 
4
)
 
4
(OH)
 
3
 · 15H
 
2
O

Other Names for Tinsleyite

Synonyms:
IMA1983-004
Other Languages:
German:Tinsleyit
Russian:Тинслейит
Spanish:Tinsleyita

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 Tinsleyite

Reference List:American Mineralogist (1984): 69: 374-376.

Internet Links for Tinsleyite

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    Localities for Tinsleyite

    Hide Locality List
    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.
    Australia
     
    • South Australia
      • Mt Lofty Ranges
        • South Mt Lofty Ranges
          • Kapunda
    		 V. Peisley & P. Elliott in prep
    Brazil
     
    • Southeast Region
      • Minas Gerais
    		Am.Min. (2001) 86, p. 1053–1056
    Namibia
     
    • Erongo Region
      • Karibib District
        • Etemba 135 farm
    		K.Walenta (2002): Tinsleyit von der Farm Etemba bei Omaruru in Namibia; Aufschluss 53, S.118-120 (2002)
    Portugal
     
    • Guarda District
      • Sabugal
    		Schnorrer-Köhler (1991), Mineral Occurrences.
    Romania
     
    • Hunedoara Co.
      • Hunedoara
    		Eur.Journ.Min. 14:157-164
    USA
     
    • South Dakota
      • Custer Co.
        • Custer District
          • Fourmile
    		Rocks & Minerals: 60: 117.
          • Pringle
            • Cicero Peak
    		Rocks & Minerals: 75(3): 156-169.
    Mineral and/or Locality
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