Carlhintzeite
A valid IMA mineral species
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About Carlhintzeite
Carl Adolf Ferdinand Hintze
Formula:
Ca2[AlF6]F · H2O
Colour:
Colorless
Lustre:
Sub-Vitreous
Specific Gravity:
2.86
Crystal System:
Triclinic
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 Institut, 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.
Unique Identifiers
Mindat ID:
900
Long-form identifier:
mindat:1:1:900:7
IMA Classification of Carlhintzeite
Approved
IMA Formula:
Ca2AlF7·H2O
Approval year:
1978
First published:
1979
Classification of Carlhintzeite
3.CB.45
3 : HALIDES
C : Complex halides
B : Neso-aluminofluorides
3 : HALIDES
C : Complex halides
B : Neso-aluminofluorides
11.6.7.1
11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
8.6.15
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
6 : Halides of Al
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
6 : Halides of Al
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Chz | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Carlhintzeite
Sub-Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless
Streak:
White
Tenacity:
Brittle
Cleavage:
None Observed
Density:
2.86 g/cm3 (Measured) 2.89 g/cm3 (Calculated)
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
Max. Birefringence:
δ = 0.011
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
r > v
Optical Extinction:
X ~ b, Z^c = 10°
Pleochroism:
Non-pleochroic
Chemistry of Carlhintzeite
Mindat Formula:
Ca2[AlF6]F · H2O
Element Weights:
Crystallography of Carlhintzeite
Crystal System:
Triclinic
Cell Parameters:
a = 9.485 Å, b = 6.983 Å, c = 9.305 Å
α = 91.14°, β = 104.85°, γ = 90.0°
α = 91.14°, β = 104.85°, γ = 90.0°
Ratio:
a:b:c = 1.358 : 1 : 1.333
Unit Cell V:
595.59 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Bladed crystals with {100}, {001}, and {110}. Elongated parallel to {110} and flattened on {001}.
Twinning:
Always twinned by rotation on {101}
Comment:
Point Group: 1or 1; Space Group: C1 or C1.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0017800 | Carlhintzeite | Kampf A R, Colombo F, Gonzalez del Tanago J (2010) Carlhintzeite, Ca2AlF7*H2O, from the Gigante granitic pegmatite, Cordoba province, Argentina: description and crystal structure Mineralogical Magazine 74 623-632 | 2010 | Gigante pegmatite, Punilla Department, Cordoba Province, Argentina | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.56 Å | (70) |
| 3.69 Å | (60) |
| 3.48 Å | (100) |
| 2.852 Å | (40) |
| 2.277 Å | (30) |
| 2.242 Å | (30) |
| 1.460 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Carlhintzeite
General Appearance of Type Material:
Small white bladed crystals in open radial clusters
Place of Conservation of Type Material:
Royal Ontario Museum, Toronto, Canada, M35498;
National Museum of Natural History, Washington, D.C., USA, B20119.
National Museum of Natural History, Washington, D.C., USA, B20119.
Geological Setting of Type Material:
Late-stage phosphate mineralization in granite pegmatite
Associated Minerals at Type Locality:
Synonyms of Carlhintzeite
Other Language Names for Carlhintzeite
Common Associates
Associations Based on Photo Data:
| 14 photos of Carlhintzeite associated with Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| 6 photos of Carlhintzeite associated with Goethite | Fe3+O(OH) |
| 5 photos of Carlhintzeite associated with Fluorite | CaF2 |
| 2 photos of Carlhintzeite associated with Quartz | SiO2 |
| 1 photo of Carlhintzeite associated with Phosphosiderite | FePO4 · 2H2O |
| 1 photo of Carlhintzeite associated with Hewettite | CaV6O16 · 9H2O |
| 1 photo of Carlhintzeite associated with Gearksutite | Ca[Al(F,OH)5(H2O)] |
| 1 photo of Carlhintzeite associated with Pyrite | FeS2 |
| 1 photo of Carlhintzeite associated with Jarosite | KFe3+3(SO4)2(OH)6 |
| 1 photo of Carlhintzeite associated with Leucophosphite | KFe3+2(PO4)2(OH) · 2H2O |
Related Minerals - Strunz-mindat Grouping
| 3.CB.05 | Cryolithionite | Na3Al2(LiF4)3 |
| 3.CB.15 | Elpasolite | K2NaAlF6 |
| 3.CB.15 | Simmonsite | Na2LiAlF6 |
| 3.CB.15 | Cryolite | Na2NaAlF6 |
| 3.CB.20 | Colquiriite | CaLi[AlF6] |
| 3.CB.25 | Leonardsenite | MgAlF5 · 2H2O |
| 3.CB.25 | Weberite | Na2Mg[AlF6]F |
| 3.CB.30 | Karasugite | SrCa[Al(F,OH)7] |
| 3.CB.35 | Usovite | Ba2CaMgAl2F14 |
| 3.CB.40 | Thomsenolite | NaCa[AlF6] · H2O |
| 3.CB.40 | Pachnolite | NaCa[AlF6] · H2O |
| 3.CB.50 | Yaroslavite | Ca3Al2F10(OH)2 · H2O |
| 3.CB.55 | Sbacchiite | Ca2AlF7 |
| 3.CB.60 | Verneite | Na2Ca3Al2F14 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Carlhintzeite
mindat.org URL:
https://www.mindat.org/min-900.html
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References for Carlhintzeite
Reference List:
Dunn, Pete J., Peacor, Donald R., Sturman, B. Darko (1979) Carlhintzeite, a new calcium aluminum fluoride hydrate from the Hagendorf pegmatites, Bavaria, Germany. The Canadian Mineralogist, 17 (1) 103-105
Localities for Carlhintzeite
Showing 12 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Argentina | |
| Kampf et al. (2010) +1 other reference |
Brazil | |
| Wegner et al. (1998) |
China | |
| Shen (n.d.) |
| Jordi Fabre | |
| boyuan zhang Collection | |
Germany | |
| Markl (2015) +1 other reference |
| Keck (2001) +1 other reference |
| www.handbookofmineralogy.org (2011) |
| Dunn et al. (1979) +2 other references | |
| Bender et al. (1994) |
Greece | |
| Rieck et al. (2018) |
Italy | |
| Bortolozzi et al. (2007) |
Quick NavTopAbout CarlhintzeiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany