Carlhintzeite Mineral Data

General Carlhintzeite Information

Chemical Formula:

Ca2AlF7•(H2O)

Composition:

Molecular Weight = 258.14 gm

Calcium 31.05 % Ca 43.45 % CaO

Aluminum 10.45 % Al 19.75 % Al₂O₃

Hydrogen 0.78 % H 6.98 % H₂O

Oxygen 6.20 % O

Fluorine 51.52 % F 51.52 % F

- % F -21.69 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂AlF₇•(H₂O)

Environment:

In a pegmatite.

IMA Status:

Approved IMA 1979

Locality:

Hagendorf, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for Carl Hintze (1851-1916), German mineralogist, Professor of mineralogy at the University of Breslau and compiler of the "Handbuch der mineralogie."

Carlhintzeite Image

Images:

Carlhintzeite

Comments: Colorless tabular crystals of carlhintzeite on matrix.
Location: Hagendorf, Bayern, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Carlhintzeite Crystallography

Axial Ratios:

a:b:c =1.3581:1:1.3323

Cell Dimensions:

a = 9.48, b = 6.98, c = 9.3, Z = 4; alpha = 91.14°, beta = 104.85°, gamma = 90° V = 594.71 Den(Calc)= 2.88

Crystal System:

Triclinic Space Group: C1,C1

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.48(1), 4.56(0.7), 3.69(0.6),

Physical Properties of Carlhintzeite

Color:

Colorless, White.

Density:

2.86

Diaphaneity:

Transparent

Habit:

Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Carlhintzeite

Optical Data:

Biaxial (+), a=1.411, b=1.416, g=1.422, bire=0.0110, 2V(Calc)=86, 2V(Meas)=77.

Calculated Properties of Carlhintzeite

Electron Density:

Bulk Density (Electron Density)=2.81 gm/cc
note: Specific Gravity of Carlhintzeite =2.88 gm/cc.

Fermion Index:

Fermion Index = 0.0004501122
Boson Index = 0.9995498878

Photoelectric:

PE_{Carlhintzeite}= 4.46 barns/electron
U=PE_{Carlhintzeite} x rElectron Density= 12.55 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Carlhintzeite is Not Radioactive

Carlhintzeite Classification

Dana Class:

11.06.07.01 (11)Halide Complexes; Alumino-fluorides

(11.06)with miscellaneous formulae

(11.06.07)Dana Group

11.06.07.01 Carlhintzeite Ca2AlF7•(H2O) C1,C1 Tri

Strunz Class:

03.CB.45 03 - HALIDES

03.C - Complex Halides

03.CB -Neso-aluminofluorides

03.CB.45 Carlhintzeite Ca2AlF7•(H2O) C1,C1 Tri

Other Carlhintzeite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Carlhintzeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Carlhintzeite

Ca2AlF7•(H2O)
Dana No: 11.06.07.01 Strunz No: 03.CB.45
Locality:

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