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Carlhintzeite

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Formula:
Ca
 
2
[AlF
 
6
]F · H
 
2
O
System:TriclinicColour:Colorless
Lustre:Sub-Vitreous
Name:
Named in 1979 by Pete J. Dunn, Donald R. Peacor, and B. Darko Sturman in honor of Dr. Carl Adolf Ferdinand Hintze [August 17, 1851 Breslau, Germany {Wrocław, Poland} - December 28, 1916 Breslau, Germany {Wrocław, Poland}], Professor of Mineralogy and director of the Mineralogische Instituts, Univerity of Breslau, Breslau, Germany {Wrocław, Poland}. Hintze was acclaimed for his compilation of the famous systematic Handbuch der Mineralogie and particularly for its comprehensive listing of mineral localities.
This page provides mineralogical data about Carlhintzeite.

Classification of Carlhintzeite

IMA status:Approved
Strunz 8th edition ID:3/C.03-50
Nickel-Strunz 10th (pending) edition ID:3.CB.45

3 : HALIDES
C : Complex halides
B : Neso-aluminofluorides
Dana 8th edition ID:11.6.7.1

11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
Hey's CIM Ref.:8.6.15

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
6 : Halides of Al
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Type Occurrence of Carlhintzeite

Type Locality:Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany
General Appearance of Type Material:Small white bladed crystals in open radial clusters
Year of Discovery:1979
Geological Setting of type material:Late-stage phosphate mineralization in granite pegmatite
Associated Minerals at type locality:
StrengiteRockbridgeitePyriteApatite

Physical Properties of Carlhintzeite

Lustre:Sub-Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colorless
Streak:White
Tenacity:Brittle
Cleavage:None Observed
Density (measured):2.86 g/cm3
Density (calculated):2.89 g/cm3

Crystallography of Carlhintzeite

Crystal System:Triclinic
Cell Parameters:a = 9.485Å, b = 6.983Å, c = 9.305Å
α = 91.14°, β = 104.85°, γ = 90.0°
Ratio:a:b:c = 1.358 : 1 : 1.333
Unit Cell Volume:V 595.59 ų (Calculated from Unit Cell)
Z:4
Morphology:Bladed crystals with {100}, {001}, and {110}. Elongated parallel to {110} and flattened 0n {001}.
Twinning:Always twinned by rotation on {101}
X-Ray Powder Diffraction:
d-spacingIntensity
4.56 (70)
3.69 (60)
3.48 (100)
2.852 (40)
2.277 (30)
2.242 (30)
1.460 (40)

Optical Data of Carlhintzeite

Type:Biaxial (+)
RI values: nα = 1.411 nβ = 1.416 nγ = 1.422
2V:Measured: 77° , Calculated: 78° to 86°
Birefringence:0.011
Maximum Birefringence:δ = 0.011

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v
Optical Extinction:X ~ b, Z^c = 10°
Pleochroism:Non-pleochroic

Chemical Properties of Carlhintzeite

Formula:
Ca
 
2
[AlF
 
6
]F · H
 
2
O
Simplified for copy/paste:Ca2[AlF6]F·H2O
Essential elements:Al, Ca, F, H, O
All elements listed in formula:Al, Ca, F, H, O

Relationship of Carlhintzeite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.CB.05Cryolithionite
Na
 
3
Li
 
3
[AlF
 
6
]
 
2
3.CB.15Cryolite
Na
 
3
[AlF
 
6
]
3.CB.15Elpasolite
NaK
 
2
[AlF
 
6
]
3.CB.15Simmonsite
Na
 
2
Li[AlF
 
6
]
3.CB.20Colquiriite
CaLi[AlF
 
6
]
3.CB.25Weberite
Na
 
2
Mg[AlF
 
6
]F
3.CB.30Karasugite
SrCa[Al(F,OH)
 
7
]
3.CB.35Usovite
Ba
 
2
CaMgAl
 
2
F
 
14
3.CB.40Pachnolite
NaCa[AlF
 
6
] · H
 
2
O
3.CB.40Thomsenolite
NaCa[AlF
 
6
] · H
 
2
O
3.CB.50Yaroslavite
Ca
 
3
Al
 
2
F
 
10
(OH)
 
2
· H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
8.6.1Zharchikhite
AlF(OH)
 
2
8.6.2Chloraluminite
AlCl
 
3
· 6H
 
2
O
8.6.3Cadwaladerite
AlCl(OH)
 
2
· 4H
 
2
O
8.6.4Cryolithionite
Na
 
3
Li
 
3
[AlF
 
6
]
 
2
8.6.5Cryolite
Na
 
3
[AlF
 
6
]
8.6.6Chiolite
Na
 
5
Al
 
3
F
 
14
8.6.7Elpasolite
NaK
 
2
[AlF
 
6
]
8.6.8Weberite
Na
 
2
Mg[AlF
 
6
]F
8.6.9Ralstonite
NaMg[Al(F,OH)
 
6
] · H
 
2
O
8.6.10Koenenite
Na
 
4
Mg
 
9
Al
 
4
Cl
 
12
(OH)
 
22
8.6.11 Chlor-manasseite
Mg
 
x
Al(OH)
 
2x+2
Cl · (x-0.8)H
 
2
O x about 1.75
8.6.12Gearksutite
Ca[Al(F,OH)
 
5
(H
 
2
O)]
8.6.13Prosopite
CaAl
 
2
(F,OH)
 
8
8.6.14Yaroslavite
Ca
 
3
Al
 
2
F
 
10
(OH)
 
2
· H
 
2
O
8.6.16Colquiriite
CaLi[AlF
 
6
]
8.6.17Thomsenolite
NaCa[AlF
 
6
] · H
 
2
O
8.6.18Pachnolite
NaCa[AlF
 
6
] · H
 
2
O
8.6.19Zirklerite
(Fe,Mg,Ca)
 
9
Al
 
4
Cl
 
18
(OH)
 
12
· 14H
 
2
O (?)

Other Names for Carlhintzeite

Synonyms:
IMA1978-031
Other Languages:
German:Carlhintzeit
Spanish:Carlhintzeita

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 Carlhintzeite

Reference List:

- +
American Mineralogist: 65: 205-206.

Canadian Mineralogist: 17: 103-105.

Internet Links for Carlhintzeite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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  • Localities for Carlhintzeite

    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.
    Argentina
     
    • Córdoba
      • Punilla Department
    Kampf, A.R., Colombo, F & González del Tánago, J. (2010):Carlhintzeite, Ca2AlF7·H2O, from the Gigante granitic pegmatite, Córdoba province, Argentina: description and crystal structure. Mineralogical Magazine. 74, 623-632
    Brazil
     
    • Paraíba
      • Borborema mineral province
        • Pedra Lavrada
    R. Wegner, H. Pöllmann, T. Witzke, & W. Schuckmann (1998): Colquiriite, carlhintzeite, ralstonite and pachnolite from Serra Branca-Pegmatite/Brazil.- Proceedings 17th General Meeting, IMA, August 1998, Toronto, A151
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • Pleystein
    Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
            • Waidhaus
              • Hagendorf
    [Can.Min.(1979) 17, 103-105; Nickel & Nichols, 1991, p34 - "Mineral Reference Manual"]
    Italy
     
    • Sardinia
      • Carbonia-Iglesias Province
        • Domusnovas
    Bortolozzi, G., Ciriotti, M. E., Galli, E., & Bonacina, E. (2007). Carlhintzeite e cowlesite della Sardegna: primi ritrovamenti italiani. Micro (UK report), 1/2007, 33-38.
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