"manganese hydrate" in German manganese hydrate Hartmanganerz Psilomelan Detailed translations for "manganese hydrate" manganese hydrate manganese hydrate(also: black haematite/hematite, psilomelane) das Hartmanganerz{neuter} manganese hydrate(also: black haematite/hematite, psilomelane) der Psilomelan{masculine}