Rinneite
A valid IMA mineral species - grandfathered
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About Rinneite
Formula:
K3Na[FeCl6]
Colour:
Colourless (pure), rose, violet, yellow; turns brown on exposure; colourless to yellowish in transmitted light.
Lustre:
Silky
Hardness:
3
Specific Gravity:
2.347
Crystal System:
Trigonal
Member of:
Name:
Named in 1908 by Hendrik Enno Boeke in honor of Friedrich Wilhelm Berthold Rinne [March 16, 1863 Osterode, Harz, Germany - March 12, 1933 Guenterstal, Saxony, Germany], crystallographer and petrographer, University of Kiel, Germany
Isostructural with:
This page provides mineralogical data about Rinneite.
Unique Identifiers
Mindat ID:
3423
Long-form identifier:
mindat:1:1:3423:0
GUID
(UUID V4):
(UUID V4):
b80e64e7-7e4e-4537-a976-601e0c9948c7
IMA Classification of Rinneite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
K3NaFe2+Cl6
Classification of Rinneite
3.CJ.05
3 : HALIDES
C : Complex halides
J : With MX6 complexes; M = Fe, Mn, Cu
3 : HALIDES
C : Complex halides
J : With MX6 complexes; M = Fe, Mn, Cu
11.5.3.1
11 : HALIDE COMPLEXES
5 : AmBX6
11 : HALIDE COMPLEXES
5 : AmBX6
8.11.6
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
11 : Halides of Fe and Ni
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
11 : Halides of Fe and Ni
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 |
---|---|---|
Rne | 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 Rinneite
Silky
Transparency:
Transparent
Colour:
Colourless (pure), rose, violet, yellow; turns brown on exposure; colourless to yellowish in transmitted light.
Streak:
white
Hardness:
3 on Mohs scale
Cleavage:
Distinct/Good
On {11_20).
On {11_20).
Fracture:
Splintery, Conchoidal
Density:
2.347 g/cm3 (Measured) 2.406 g/cm3 (Calculated)
Optical Data of Rinneite
Type:
Uniaxial (+)
RI values:
nω = 1.589 nε = 1.589
Max Birefringence:
δ = 0.001
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Chemistry of Rinneite
Mindat Formula:
K3Na[FeCl6]
Elements listed:
Crystallography of Rinneite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3c
Cell Parameters:
a = 11.98 Å, c = 13.84 Å
Ratio:
a:c = 1 : 1.155
Unit Cell V:
1,720.21 ų (Calculated from Unit Cell)
Morphology:
Massive, granular. Crystals thick tabular {0001} or short prismatic [0001] (artificial crystals).
Twinning:
On {0001} (artificial crystals)
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) |
---|---|---|---|---|---|---|---|
0010319 | Rinneite | Figgis B N, Sobolev A N, Kucharski E S, Broughton V (2000) Rinneite, K3Na[FeCl6], at 293, 84 and 9.5 K Acta Crystallographica C56 e228-e229 | 2000 | synthetic | 0 | 293 | |
0010320 | Rinneite | Figgis B N, Sobolev A N, Kucharski E S, Broughton V (2000) Rinneite, K3Na[FeCl6], at 293, 84 and 9.5 K Acta Crystallographica C56 e228-e229 | 2000 | synthetic | 0 | 293 | |
0010321 | Rinneite | Figgis B N, Sobolev A N, Kucharski E S, Broughton V (2000) Rinneite, K3Na[FeCl6], at 293, 84 and 9.5 K Acta Crystallographica C56 e228-e229 | 2000 | synthetic | 0 | 293 | |
0019749 | Rinneite | Beattie J K, Moore C J (1982) Crystal and molecular structures of rinneite, sodium tripotassium hexachloroferrate(II), and hexaamminecobalt(III) hexachloroferrate(III). Comparison of iron-chloride distances in hexachloroferrates(II) and -(III) Inorganic Chemistry 21 1292-1295 | 1982 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
25 : Evaporites (prebiotic) | |
Stage 7: Great Oxidation Event | <2.4 |
45b : [Other oxidized fumarolic minerals] |
Geological Setting:
Oceanic salt deposits.
Type Occurrence of Rinneite
Place of Conservation of Type Material:
No designated type material.
Geological Setting of Type Material:
Saline deposits of the oceanic type.
Other Language Names for Rinneite
Relationship of Rinneite to other Species
Member of:
Other Members of this group:
Chlormanganokalite | K4[MnCl6] | Trig. 3m (3 2/m) : R3m |
Saltonseaite | K3NaMnCl6 | Trig. 3m (3 2/m) : R3c |
Common Associates
Associated Minerals Based on Photo Data:
2 photos of Rinneite associated with Carnallite | KMgCl3 · 6H2O |
Related Minerals - Strunz-mindat Grouping
3.CJ.05 | Chlormanganokalite | K4[MnCl6] |
3.CJ.05 | Saltonseaite | K3NaMnCl6 |
3.CJ.10 | Erythrosiderite | K2[Fe3+Cl5(H2O)] |
3.CJ.10 | Kremersite | (NH4,K)2[Fe3+Cl5(H2O)] |
3.CJ.15 | Mitscherlichite | K2CuCl4 · 2H2O |
3.CJ.20 | Douglasite | K2[Fe2+Cl4(OH2)2] |
3.CJ.25 | Redikortsevite | (NH4)MgCl3 · 6H2O |
3.CJ.30 | Zirklerite | (Fe,Mg,Ca)9Al4Cl18(OH)12 · 14H2O (?) |
3.CJ.30 | Kalithallite | K3Tl3+Cl6 · 2H2O |
Other Information
Notes:
Soluble in water. Decomposed by absolute alcohol with the extraction of ferrous chloride.
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 Rinneite
mindat.org URL:
https://www.mindat.org/min-3423.html
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Please feel free to link to this page.
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References for Rinneite
Reference List:
Localities for Rinneite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Canada | |
| Boehner (1986) |
China | |
Yuhua Chen et al. (1998) | |
| Weihao Yue et al. (2011) +1 other reference |
Germany | |
| Dietrich et al. (2004) |
| Dietrich et al. (2004) |
| Weiß (1990) |
| Bode "Mineralien und Fundstellen BRD" ... +1 other reference |
| Palache et al. (1951) |
| Palache et al. (1951) +1 other reference |
| Palache et al. (1951) |
| Aufschluss 1987 (4) |
| Palache et al. (1951) |
Wittern (2001) | |
| BOEKE (1909) +1 other reference |
Leon Hupperichs collection | |
| XRD analysis (T. Witzke) |
Iran | |
| Talbot et al. (2009) |
Italy | |
| Russo et al. (2004) |
Pelloux (1927) +1 other reference | |
Turkmenistan | |
| Evseev (1995) |
UK | |
| Armstrong et al. (1951) |
Armstrong et al. (1951) | |
USA | |
| Mike Scott S104332 from Cureton #CRD ID ... |
| Excalibur Mineral Corporation specimen |
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Merkers mine, Krayenberggemeinde, Wartburg District, Thuringia, Germany