University of Hamburg Mineralogical Museum of the University of Hamburg
Mineral name
 
Ekatite
 
Hölzel-No.
 
5.JB.180
Type of specimen
 
HT
IMA-No. / Accepted
 
98-024 / 1998
Chemical formula
 
(Fe3+,Fe2+,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2
Type locality
 
Namibia, Tsumeb, Tsumeb mine
Associated minerals
 
Chalcocite, quartz
Collection
 
Archiv der Universität Stuttgart - „Mineralogische Sammlung Prof. Keller”
Contact person
 
Prof. Dr. P. Keller
Catalogue−No. / Site
 
TM-98.24-Gro19 / 0/824-s27/2
Nature of 
type specimen

 
Mineral specimens, up to 8 x 7 x 3 mm. Single crystals in glass capillary.
References

Ekatite, (Fe3+,Fe2+,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2, a new mineral from Tsumeb, Namibia, and its crystal structure.
Keller, P. (2001)
Eur. J. Mineral., 13, 769-777
Notes / Further information

Named after Dieter Ekat, Karibib, Namibia. Michael Grieser, Mannheim, Germany, who drew attention to the supposed new mineral and provided samples for examination.
Last update 27. April 2022 by A. Matthies Imprint (german)