Full Idea
The distinction between 'resultant' properties like weight, and 'emergent' properties like colour, seems intuitive enough, but on examination it is very hard to make precise.
Gist of Idea
The distinction between 'resultant' properties (weight) and 'emergent' properties is a bit vague
Source
Tim Crane (Elements of Mind [2001], 2.18)
Book Reference
Crane,Tim: 'Elements of Mind' [OUP 2001], p.64
A Reaction
It is no coincidence that the examples are of primary and secondary qualities. If 'the physical entails the mental' then all mental properties are resultant.