Hisingerite is a rare mineral that gets its name from a Swedish chemist, Wilhelm Hisinger. The mineral is a type of iron hydroxide that is found in metamorphic rocks. Unfortunately, there are not many synonyms for this particular mineral. However, it is in the same mineral group as goethite, limonite, and magnetite. These minerals are all iron hydroxides, and they are often found together in geological formations. Hisingerite is a type of mineral that is not very common, so it is often studied by geologists and mineralogists who are interested in understanding the composition of rocks and the processes that shape our planet.