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About AmmineiteHide

Crystal System:
Named in allusion to being the first mineral species containing an ammine (NH3) complex in the composition.
Not to be confused with amminite.

First recognized mineral with ammine (NH3) group; one of four currently known NH3-bearing minerals, by chanabayaite, joanneumite and shilovite. Elements in ammineite may also be found in buttgenbachite, but its chemical systematics is different.

Classification of AmmineiteHide

Approval Year:

C : Complex halides
0 :

Chemical Properties of AmmineiteHide

IMA Formula:
CuCl2 · 2NH3

Crystallography of AmmineiteHide

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cell Parameters:
a = 7.688 Å, b = 10.645 Å, c = 5.736 Å
a:b:c = 0.722 : 1 : 0.539
Unit Cell V:
469.43 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
6.282 (69)
4.276 (56)
3.897 (60)
2.919 (100)
2.764 (35)
2.659 (81)
2.335 (32)
1.966 (28)

Type Occurrence of AmmineiteHide

Synonyms of AmmineiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Halite5 photos of Ammineite associated with Halite on mindat.org.
Shilovite2 photos of Ammineite associated with Shilovite on mindat.org.
Gypsum1 photo of Ammineite associated with Gypsum on mindat.org.
Atacamite1 photo of Ammineite associated with Atacamite on mindat.org.

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 AmmineiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Walter, F., Bojar, H.-P., Baumgartner, J. (2010): Ammineite, CuCl2(NH3)2 - the first mineral with an ammine complex. 20th General Meeting of the IMA (IMA2010), Budapest, Hungary, August 21-27, CD of Abstracts, p. 501.

Internet Links for AmmineiteHide

Localities for AmmineiteHide

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.
Chile (TL)
  • Tarapacá
    • Iquique Province
      • Chanabaya
Walter, F., Bojar, H.-P., Baumgartner, J. (2010): Ammineite, CuCl2(NH3)2 - the first mineral with an ammine complex. 20th General Meeting of the International Mineralogical Association - Budapest 21-27.08.2010 (in press).
  • Campania
    • Naples
      • Somma-Vesuvius Complex
M. Russo & I. Campostrini (2011): Ammineite, matlockite and post 1944 eruption fumarolic minerals at Vesuvius. Plinius 37, 312.
  • Arizona
    • Maricopa Co.
      • Painted Rock Mts
        • Painted Rock District
          • Theba
Raman analyzed at the University of Arizona.
Mineral and/or Locality  
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