Mathesiusite is a
sulfate mineral
The sulfate minerals are a class of minerals that include the sulfate ion () within their structure. The sulfate minerals occur commonly in primary evaporite depositional environments, as gangue minerals in hydrothermal veins and as secondary m ...
containing
potassium
Potassium is the chemical element with the symbol K (from Neo-Latin '' kalium'') and atomic number19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmosp ...
,
vanadium
Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer ( pass ...
, and
uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly ...
and has the chemical formula: K
5(UO
2)
4(SO
4)
4(VO
5)·4(H
2O). It is a secondary mineral formed during post-mining processes.
It was discovered in the
Jáchymov
Jáchymov (); german: Sankt Joachimsthal or ''Joachimsthal'') is a spa town in Karlovy Vary District in the Karlovy Vary Region of the Czech Republic. It has about 2,300 inhabitants.
The historical core of the town from the 16th century is wel ...
mining district,
Czech Republic
The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. Th ...
and named in 2013 after
Johannes Mathesius
Johannes Mathesius (June 24, 1504 – October 7, 1565), also called Johann Mathesius or John Mathesius, was a German minister and a Lutheran reformer. He is best known for his compilation of Martin Luther's '' Table Talk'', or notes taken of L ...
(1504–1565), who studied minerals from the area (known then as Joachimsthal, Bohemia).
References
{{Reflist
Uranium minerals
Sulfate minerals
Vanadium minerals
Potassium minerals
Tetragonal minerals
Minerals in space group 85