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Mitscherlichite

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About MitscherlichiteHide

Eilhard Mitscherlich
Formula:
K2CuCl4 · 2H2O
Colour:
Greenish-blue; colourless in transmitted light
Lustre:
Vitreous
Hardness:
Specific Gravity:
2.418
Crystal System:
Tetragonal
Name:
For German crystallographer and chemist Eilhard Mitscherlich (1794-1863), Professor of Chemistry in the University of Berlin, Germany, who discovered the phenomena of isomorphism and polymorphism, and who first prepared the compound.
This page provides mineralogical data about Mitscherlichite.


Classification of MitscherlichiteHide

Approved, 'Grandfathered' (first described prior to 1959)
3.CJ.15

3 : HALIDES
C : Complex halides
J : With MX6 complexes; M = Fe, Mn, Cu
11.3.2.1

11 : HALIDE COMPLEXES
3 : AmBX4·xH2O
8.2.12

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
2 : Halides of Cu

Physical Properties of MitscherlichiteHide

Vitreous
Transparency:
Transparent
Colour:
Greenish-blue; colourless in transmitted light
Hardness:
2½ on Mohs scale
Density:
2.418 g/cm3 (Measured)    2.41 g/cm3 (Calculated)

Optical Data of MitscherlichiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.637 nε = 1.615
Max Birefringence:
δ = 0.022
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of MitscherlichiteHide

Formula:
K2CuCl4 · 2H2O

Crystallography of MitscherlichiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Cell Parameters:
a = 7.45 Å, c = 7.9 Å
Ratio:
a:c = 1 : 1.06
Unit Cell V:
438.47 ų (Calculated from Unit Cell)
Morphology:
Crystals pyramidal {011}, or short prismatic [001].
Twinning:
On {011} (artificial material).

Type Occurrence of MitscherlichiteHide

General Appearance of Type Material:
Stalactites
Geological Setting of Type Material:
Floor of an active volcanic crater.
Associated Minerals at Type Locality:

Other Language Names for MitscherlichiteHide

Related Minerals - Nickel-Strunz GroupingHide

3.CJ.05ChlormanganokaliteK4[MnCl6]Trig.
3.CJ.05RinneiteK3Na[FeCl6]Trig. 3m (3 2/m) : R3c
3.CJ.10ErythrosideriteK2[Fe3+Cl5(H2O)]Orth. mmm (2/m 2/m 2/m) : Pnma
3.CJ.10Kremersite(NH4,K)2[Fe3+Cl5(H2O)]Orth. mmm (2/m 2/m 2/m)
3.CJ.20DouglasiteK2[Fe2+Cl4(OH2)2]Mon.
3.CJ.25Redikortsevite(NH4)MgCl3 · 6H2OOrth.
3.CJ.30Zirklerite(Fe,Mg,Ca)9Al4Cl18(OH)12 · 14H2O (?)Trig.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.2.1NantokiteCuClIso. 4 3m : F4 3m
8.2.2TolbachiteCuCl2Mon.
8.2.3EriochalciteCuCl2 · 2H2OOrth. mmm (2/m 2/m 2/m)
8.2.4AtacamiteCu2(OH)3ClOrth. mmm (2/m 2/m 2/m) : Pnma
8.2.5ParatacamiteCu3(Cu,Zn)(OH)6Cl2Trig. 3m (3 2/m)
8.2.6BotallackiteCu2(OH)3ClMon. 2/m : P21/m
8.2.7MelanothalliteCu2Cl2OOrth.
8.2.8CalumetiteCu(OH,Cl)2 · 2H2OOrth.
8.2.9AnthonyiteCu(OH,Cl)2 · 3H2OMon. 2/m
8.2.10ClaringbulliteCu4ClF(OH)6Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.2.11MarshiteCuIIso. 4 3m : F4 3m
8.2.13PonomareviteK4Cu4Cl10OMon.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MitscherlichiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Wyrouboff (1887) Bulletin de la Société française de Minéralogie: 10: 125.
Zambonini and Carobbi (1925) Ann. R. Osservat Vesuviano: (3): 2: 7.
Hendricks and Dickinson (1927) Journal of the American Chemical Society: 48: 2149.
Chrobak (1934) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 88: 35.
Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 100-101.
Chidambaram, R., Q.O. Navarro, A. Garcia, K. Linggoatmodjo, L. Shi-Chien, and I.-H. Suh (1970): Neutron diffraction refinement of the crystal structure of potassium copper chloride dihydrate, K2CuCl4•2H2O. Acta Crystallographica 26, 827-830.

Internet Links for MitscherlichiteHide

Localities for MitscherlichiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Iran
 
  • Kerman Province
    • Rafsanjan County
      • Pariz
Khorasanipour, M. (2015). Environmental mineralogy of Cu-porphyry mine tailings, a case study of semi-arid climate conditions, Sarcheshmeh mine, SE Iran. Journal of Geochemical Exploration, 153, 40-52.
Italy (TL)
 
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
Zambonini and Carobbi (1925) Ann. R. Osservat. Vesuviano: III, 2, 7; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 101; Lapis 1994: 5: 13-23, 58.
Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI
Réunion Island
 
Vlastélic, I., Staudacher, T., Deniel, C., Devidal, J. L., Devouard, B., Finizola, A., & Telouk, P. (2013). Lead isotopes behavior in the fumarolic environment of the Piton de la Fournaise volcano (Reunion Island). Geochimica et Cosmochimica Acta, 100, 297-314.
Russia
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • Second scoria cone
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Lykova, I.S., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G., Britvin, S.N., Pushscharovsky, D.Yu. (2015): New zinc and potassium chlorides from fumaroles of the Tolbachik volcano, Kamchatka, Russia: mineral data and crystal chemistry. I. Mellizinkalite, K3Zn2Cl7. European Journal of Mineralogy, 27, 247-253.
Mineral and/or Locality  
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