1) Iron mineral
Found on
https://www.crosswordclues.com/clue/hisingerite
Hisingerite is an iron(III) phyllosilicate mineral with formula {chemical formula|Fe||3+|2|Si|2|O|5|(||OH||)|4|·2||H2O}. 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, Vastman...
Found on
http://en.wikipedia.org/wiki/Hisingerite
• (n.) A soft black, iron ore, nearly earthy, a hydrous silicate of iron.
Found on
http://thinkexist.com/dictionary/meaning/hisingerite/
His'ing·er·ite noun [ Named after W.
Hisinger , a Swedish mineralogist.]
(Min.) A soft black, iron ore, nearly earthy, a hydrous silicate of iron.
Found on
http://www.encyclo.co.uk/webster/H/48
Hisingerite, named after the Swedish mineralogist W. Hisinger, is a soft black, iron ore, nearly earthy, a hydrous silicate of iron.
Found on
http://www.probertencyclopaedia.com/browse/HH.HTM
No exact match found.
