Cattierite is a relatively obscure mineral that is mostly used for scientific purposes. However, there are a few synonyms that can be used in place of cattierite. One of them is irarsite, which is also a rare mineral that is found in certain volcanic environments. Another synonym is arsenopalladinite, which is a type of mineral that is composed of palladium, arsenic, and sulfur. Other possible synonyms for cattierite include braggite, sudburyite, and michenerite. While these terms may not be commonly used outside of scientific circles, they are useful for those who are researching minerals and their properties.