Rinneite Mineral Data

General Rinneite Information

Chemical Formula:

K3NaFe++Cl6

Composition:

Molecular Weight = 408.85 gm

Potassium 28.69 % K 34.56 % K₂O

Sodium 5.62 % Na 7.58 % Na₂O

Iron 13.66 % Fe 17.57 % FeO

Chlorine 52.03 % Cl 52.03 % Cl

- % Cl -11.74 % -O=Cl₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

K₃NaFe²⁺Cl₆

Environment:

Secondary mineral in marine saline evaporite deposits.

IMA Status:

Valid Species (Pre-IMA) 1909

Locality:

Wolkranshusen near Nordhausen, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for Friedrich Wilhelm Berthold Rinne (1863-1933), German crystallographer and petrographer, University of Kiel, Kiel, Germany.

Name Pronunciation:

Rinneite

Synonym:

ICSD 32717

PDF 20-925

Rinneite Image

Images:

Rinneite Carnallite

Comments: Orange to light brown rinneite with colorless carnallite.
Location: Merkers, Bad Salzungen, RhÃ¶n, Thuringia, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Rinneite Crystallography

Axial Ratios:

a:c = 1:1.1689

Cell Dimensions:

a = 11.9, c = 13.91, Z = 6; V = 1,705.89 Den(Calc)= 2.39

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c

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

By Intensity(I/I_o): 2.51(1), 6(0.55), 2.59(0.45),

Crystal Structure:

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Figgis B N , Sobolev A N , Kucharski E S , Broughton V , Acta Crystallographica, Section C , 56 (2000) p.e228-e229, Rinneite, K3Na[FeCl6], at 293, 84 and 9.5 K, Locality: synthetic, Sample: T = 9.5 K

Physical Properties of Rinneite

Cleavage:

{???} Good, {???} Good

Color:

Colorless, Rose red, Violet, Brown, Yellow.

Density:

2.3

Diaphaneity:

Transparent to translucent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

3 - Calcite

Luster:

Vitreous - Adamantine

Streak:

white

Optical Properties of Rinneite

Optical Data:

Uniaxial (+), w=1.5886, e=1.5894, bire=0.0008.

Calculated Properties of Rinneite

Electron Density:

Bulk Density (Electron Density)=2.29 gm/cc
note: Specific Gravity of Rinneite =2.39 gm/cc.

Fermion Index:

Fermion Index = 0.002930263
Boson Index = 0.997069737

Photoelectric:

PE_Rinneite= 10.61 barns/electron
U=PE_Rinneite x r_electron= 24.32 barns/cc.

Radioactivity:

GRapi = 396.89 (Gamma Ray American Petroleum Institute Units)
Concentration of Rinneite per GRapi unit = 0.25 (%)

Estimated Radioactivity from Rinneite - barely detectable

Rinneite Classification

Dana Class:

11.05.03.01 (11)Halide Complexes; Alumino-fluorides

(11.05)where (A)m B (X)6

(11.05.03)Dana Group

11.05.03.01 Rinneite K3NaFeCl6 R 3c 3 2/m

Strunz Class:

03.CJ.05 03 - HALIDES

03.C - Complex Halides

03.CJ -With MX6 complexes; M = Fe, Mn, Cu

03.CJ.05 Chlormanganokalite K4MnCl6 R 3c 3 2/m

03.CJ.05 Rinneite K3NaFeCl6 R 3c 3 2/m

Other Rinneite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Rinneite :
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
14 - WWW-MINCRYST

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Ask about Rinneite here :
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Print or Cut-and-Paste your Rinneite Specimen Label here :

Rinneite

K3NaFe++Cl6
Dana No: 11.05.03.01 Strunz No: 03.CJ.05
Locality:

Notes: