Hisingerite
Encyclopedia
Hisingerite is an iron phyllosilicate mineral with formula . A black or dark brown, lustrous secondary mineral, it is formed by the weathering
or hydrothermal alteration of other iron silicate and sulfide minerals
.
It was first described in 1828 for an occurrence in Riddarhyttan, Vastmanland
, Sweden
. It was named after Wilhelm Hisinger
(1766-1852), a Swedish
chemist
.
There are also aluminian hisingerite variety in which one of the iron atoms is replaced by aluminium
and chrome-alumina-hisingerite variety in which chromium
subtitutes for iron.
Weathering
Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters...
or hydrothermal alteration of other iron silicate and sulfide minerals
Sulfide mineral
The sulfide minerals are a class of minerals containing sulfide as the major anion. Some sulfide minerals are economically important as metal ores. The sulfide class also includes the selenides, the tellurides, the arsenides, the antimonides, the bismuthinides, the sulfarsenides and the sulfosalts...
.
It was first described in 1828 for an occurrence in Riddarhyttan, Vastmanland
Västmanland
' is a historical Swedish province, or landskap, in middle Sweden. It borders Södermanland, Närke, Värmland, Dalarna and Uppland.The name comes from "West men", referring to the people west of Uppland, the core province of early Sweden.- Administration :...
, Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
. It was named after Wilhelm Hisinger
Wilhelm Hisinger
Wilhelm Hisinger was a Swedish physicist and chemist who in 1807, working in coordination with Jöns Jakob Berzelius, noted that in electrolysis any given substance always went to the same pole, and that substances attracted to the same pole had other properties in common...
(1766-1852), a Swedish
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
chemist
Chemist
A chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...
.
There are also aluminian hisingerite variety in which one of the iron atoms is replaced by aluminium
Aluminium
Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....
and chrome-alumina-hisingerite variety in which chromium
Chromium
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable...
subtitutes for iron.