After Aristotle wrote on substance, a theory developed about the attributes that could inhere in a substance. They were distinguished between primary and secondary.
For example, colour is a secondary characteristic because when I boil a purple cabbage the colour leaks away, but the mass of the cabbage remains. It is primary. Or, when I view it through a blue glass, the colour changes but the mass again remains the same.
But could there be in some other possible (or impossible?) world a mass-glass through which if one looks at a cathedral or a purple cabbage, its mass changes but not its colour? That is, are primary attributes primary in this world, but possibly secondary in another?