Arseniosiderite is a relatively uncommon mineral that is composed of iron, arsenic, and oxygen. Due to its limited usage, synonyms for arseniosiderite are equally rare. One possible synonym for arseniosiderite is iron arsenate, which is another mineral that shares similar components and properties. Another potential synonym could be arsenate-hematite, which is a mineral that also contains arsenic and iron. Lastly, scorodite, a mineral composed of iron, arsenic, oxygen, and hydrogen, shares some similar properties with arseniosiderite and could serve as a possible synonym. However, it's important to note that these minerals have distinct chemical and physical properties that differentiate them from arseniosiderite.