Dhātu is often translated as element.
Element seems to be a proper translation, however it can be seen in a limited way; as chemical element or organic substance. While when I say ‘there is an element of danger to it’ it is immediately understood differently. And there are those like beautiful, lustful, aversive, harmful, etc. (f.i. AN6.111). So, to avoid confusion I use aspect instead.
Dhātu (f.) aspect.