Ludwigite is a

magnesium Magnesium is a chemical element; it has Symbol (chemistry), symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 ...

-iron

borate mineral The Borate Minerals are minerals which contain a borate anion group. The borate (BO3) units may be polymerised similar to the SiO4 unit of the silicate mineral class. This results in B2O5, B3O6, B2O4 anions as well as more complex structures whic ...

: Mg₂FeBO₅. Ludwigite typically occurs in magnesian iron

skarn Skarns or tactites are coarse-grained metamorphic rocks that form by replacement of carbonate-bearing rocks during regional or contact metamorphism and metasomatism. Skarns may form by metamorphic recrystallization of impure carbonate protoliths, ...

and other high temperature

contact metamorphic Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of , and often also at elevated pressure or in the presence of chem ...

deposits. It occurs in association with

magnetite Magnetite is a mineral and one of the main iron ores, with the chemical formula . It is one of the iron oxide, oxides of iron, and is ferrimagnetism, ferrimagnetic; it is attracted to a magnet and can be magnetization, magnetized to become a ...

forsterite Forsterite (Mg2SiO4; commonly abbreviated as Fo; also known as white olivine) is the magnesium-rich Endmember, end-member of the olivine solid solution series. It is Isomorphism (crystallography), isomorphous with the iron-rich end-member, fayalit ...

clinohumite Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula ( Mg, Fe)9( Si O4)4( F,O H)2. The formula can be thought of as four olivine (Mg2SiO4), plus one brucite (Mg(OH)2). Indeed, the mineral ...

and the borates vonsenite and szaibelyite. It forms a

solid solution A solid solution, a term popularly used for metals, is a homogeneous mixture of two compounds in solid state and having a single crystal structure. Many examples can be found in metallurgy, geology, and solid-state chemistry. The word "solutio ...

series with the iron(II)-iron(III) borate mineral vonsenite. It was first described in 1874 for an occurrence in Ocna de Fier,

Banat Mountains Banat Mountains 01

The Banat Mountains (; ) are a number of mountai ...

Caraș-Severin County Caraș-Severin () is a county ( județ) of Romania on the border with Serbia. The majority of its territory lies within the historical region of Banat, with a few northeastern villages considered part of Transylvania. The county seat is Reșița ...

Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...

and named for

Ernst Ludwig Ernest Louis (; 25 November 1868 – 9 October 1937) was the last Grand Duke of Hesse and by Rhine, reigning from 1892 until 1918. Early life Ernest Louis was the elder son of Louis IV, Grand Duke of Hesse and by Rhine and Princess Alice of th ...

(1842–1915), an Austrian chemist at the

University of Vienna The University of Vienna (, ) is a public university, public research university in Vienna, Austria. Founded by Rudolf IV, Duke of Austria, Duke Rudolph IV in 1365, it is the oldest university in the German-speaking world and among the largest ...

.Ludwigite on Mindat.org
/ref> Forsterite-Ludwigite-34581

References

Magnesium minerals Iron(III) minerals Borate minerals Orthorhombic minerals Minerals in space group 55 {{mineral-stub