Natural Selection Seems Insufficient

[Deesse23]

I've never been asked to give a formal definition. Let me give it a whirl:

Matter is a piece of visible reality describable in terms of volume, density, mass, shape, size, and location.

Mass = Density * Volume. One of the three can not be a separate property.
Shape and size define volume, making volume the second of your properties that cant actually be a separate one.

You gave 6 properties of matter of which 2 cant be a property. Thats a failure rate of 1/3, within your own silly world.