Breunnerite is a variety of
magnesite
Magnesite is a mineral with the chemical formula (magnesium carbonate). Iron, manganese, cobalt, and nickel may occur as admixtures, but only in small amounts.
Occurrence
Magnesite occurs as veins in and an alteration product of ultramafic ro ...
, with a magnesium/iron ratio of 90/10 to 70/30.
It has been described by
Wilhelm Karl Ritter von Haidinger
Wilhelm Karl Ritter von Haidinger (or Wilhelm von Haidinger, or most often Wilhelm Haidinger) (5 February 179519 March 1871) was an Austrian mineralogist.
Early life
Haidinger's father was the mineralogist Karl Haidinger (1756–1797), who died w ...
in samples of
Pfitsch pass, Zamsergrund and , two cities of the
Ziller Valley,
Tyrol
Tyrol (; historically the Tyrole; de-AT, Tirol ; it, Tirolo) is a historical region in the Alps - in Northern Italy and western Austria. The area was historically the core of the County of Tyrol, part of the Holy Roman Empire, Austrian Emp ...
, Austria.
References
{{reflist
External links
Mindat
Magnesium minerals
Iron(II) minerals
Carbonate minerals