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dark grey
The As analogue of Franckeite.

Classification of Coiraite

Approved 2005

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
F : With SnS and PbS archetype structure units URL:
Please feel free to link to this page.

Type Occurrence of Coiraite

Geological Setting of Type Material:
Polymetallic hydrotermal veins in Ordovician sediments of the Acoyte Formation
Associated Minerals at Type Locality:

Physical Properties of Coiraite

dark grey

Crystallography of Coiraite

Crystal System:
X-Ray Powder Diffraction Data:
4.27 (61)
3.426 (72)
3.345 (87)
3.122 (78)
3.009 (71)
2.966 (94)
2.883 (100)
2.065 (51)

Chemical Properties of Coiraite

All elements listed in formula:
Analytical Data:
Analysis from the book by de Brodtkorb
Pb (53.1-54.1)
Sn (17.07-18.6)
Fe (1.5-1.8)
Ag (0.4)
S (19.9-21.5)
Sb (0.6)
As (5.5-5.8)

Relationship of Coiraite to other Species

Other Members of Group:
2.HF.30Lengenbachite Ag4Cu2Pb18As12S39

Other Names for Coiraite

Name in Other Languages:

Other Information

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 Coiraite

Reference List:
Brodtkorb, M. K. de: Las Especies Minerales de la Republica Argentina (2002) Asociacion Mineralogica Argentina.

Paar, W.H., de Brodtkorb, M.K., Sureda, R.J., Topa, D. (2001): Mineralogía y quimismo de sulfuros y sulfosales de estaño y plomo en las vetas de Mina Pirquitas, Jujuy, Argentina (22°41'S66°28'W). Revista geológica de Chile, 28(2), 259-268.

Internet Links for Coiraite

The following Coiraite specimens are currently listed for sale on

Localities for Coiraite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Argentina (TL)
  • Jujuy
    • Rinconada Department
M. de Brodtkorb (2002)
Paar, W. H., Moëlo, Y., Mozgova, N. N., Organova, N. I., Stanley, C. J., Roberts, A. C., ... & De Brodtkorb, M. K. (2008). Coiraite,(Pb, Sn2+) 12.5 As3Fe2+ S28: a franckeite-type new mineral species from Jujuy Province, NW Argentina. Mineralogical Magazine, 72(5), 1083-1101.
Paar, W. H. (2013): Pirquitasit - erstmals Kristalle aus Argentinien zu sehen. Mineralien-Welt 24 (3), 42-43 (in German).
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