Full Idea
Form is not an accidental property of matter, and it is not a necessary property of matter. These considerations make it unlikely that Aristotle holds form or essence to be a property of matter in the composite substance.
Gist of Idea
Essential form is neither accidental nor necessary to matter, so it appears not to be a property
Source
report of Aristotle (Metaphysics [c.324 BCE], ess) by Charlotte Witt - Substance and Essence in Aristotle 4.5
Book Reference
Witt,Charlotte: 'Substance and Essence in Aristotle' [Cornell 1994], p.129
A Reaction
I suppose form bestows the identity, and the identity gives rise to the properties. But you don't create identity on Monday, and add the properties on Tuesday, so forming an entity and giving it properties seem to coincide.