What is the ruling on zakat for jewelry kept for adornment if my mother has been paying zakat on it for many years from haram usurious money, and she was unaware of this? And is it obligatory to re-evaluate the zakat on gold designated for savings, for which zakat was paid from haram money?

Zakat (definition) is not obligatory on women's jewelry intended for personal use. The opinion of the majority, which states that Zakat is not obligatory on it, is the view of most scholars. As for ill-gotten wealth, it is not permissible to give it out as Zakat; rather, one must dispose of it. What is meant here by ill-gotten wealth is the interest resulting from a usurious transaction. Zakat must be paid on hoarded gold that has not been subjected to Zakat in previous years.