
1) Iron mineral 2) Trigonal mineral
Found on
https://www.crosswordclues.com/clue/jarosite

Jarosite is a basic hydrous sulfate of potassium and iron with a chemical formula of KFe3+3(OH)6(SO4)2. This sulfate mineral is formed in ore deposits by the oxidation of iron sulfides. Jarosite is often produced as a byproduct during the purification and refining of zinc and is also commonly associated with acid mine drainage and acid sulfate soi...
Found on
http://en.wikipedia.org/wiki/Jarosite

• (n.) An ocher-yellow mineral occurring on minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.
Found on
http://thinkexist.com/dictionary/meaning/jarosite/
Ja·ro'site noun [ From Barranco
Jaroso , in Spain.]
(Min.) An ocher-yellow mineral occurring in minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.
Found on
http://www.encyclo.co.uk/webster/J/5

Jarosite, named after Barranco Jaroso in Spain, is an ochre-yellow mineral occurring in minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.
Found on
http://www.probertencyclopaedia.com/browse/HJ.HTM
(Potassium Iron Sulfate Hydroxide) Jarosite is not a common mineral. It is closely related to the mineral natrojarosite . Jarosite is isostructural with natrojarosite which means that they have the same crystal structure but different chemistries. In this case, jarosite contains potassium instead of natrojarosite's sodium (nat...
Found on
https://www.encyclo.co.uk/local/23719
No exact match found.