Full Idea
We can distinguish (as Aristotle and Fine do) between what belongs to the essence of an object, and what merely follows from the essence of an object.
Gist of Idea
An essence and what merely follow from it are distinct
Source
Kathrin Koslicki (Essence, Necessity and Explanation [2012], 13.1)
Book Reference
'Contemporary Aristotelian Metaphysics', ed/tr. Tahko,Tuomas [CUP 2012], p.188
A Reaction
This can help to clarify the confusions that result from treating necessary properties as if they were essential.