Metallic crystal aggregates of the very rare Ni-Sb sulphide mineral tucekite in matrix from Rocheservières, La Roche-sur-Yon, Vendée, Pays de la Loire, France. Ex Vandenbroucke Museum collection from Waregem, Belgium. — Photo: David Hospital · CC BY-SA 4.0
Tučekite
Tučekite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula Ni₉Sb₂S₈.
It crystallizes in the tetragonal crystal system. It is a member of the hauchecornite structural group.
Key properties: specific gravity 6.15; Metallic luster.
IMA symbol Tuč, IMA status: approved, named in 1975.
Found in a hydrothermal deposit (Kanowna, Australia); in heavy mineral concentrates (Witwatersrand, South Africa); in serpentinites (Vozhmin massif, Russia).
It is found associated with Millerite, pyrite, chalcopyrite, gersdorffite, pentlandite, magnetite, polydymite (Kanowna, Australia); gold, dyscrasite, michenerite, geversite, tetrahedrite.
The mineral was named to honor Dr. Karel Tuček (1906–1990), Curator of Minerals in the National Museum, Prague, Czech Republic. All rights reserved. No part of this publication may be reproduced.