Čechite Field of view 1.8 mm Locality: Maria Magdalena Mine, Ulldemolins, Priorat, Tarragona, Catalonia, Spain — Photo: Christian Rewitzer · CC BY-SA 3.0
Čechite
Čechite is an IMA-recognized mineral species in the vanadate class, with the chemical formula PbFe²⁺(VO₄)(OH).
It crystallizes in the orthorhombic crystal system (space group Pnam). It is a member of the Descloizite structural group.
Key properties: Mohs hardness 4.5–5; specific gravity 5.88; Black streak; Submetallic, resinous on fractures luster.
IMA symbol Čec, IMA status: approved, named in 1980.
On specimens from old mine dumps from a polymetallic ore deposit.
It is found associated with Hedyphane, calcite, hematite, willemite, quartz.
The mineral was named to honor Dr. František Čech (1929–1995), Head of the Department of Mineralogy (1976–1990), Charles University, Prague, Czech Republic.