Not necessarily. The temperature of the samples would have to be the same. It can also vary with how pure the substance is.
Density represents mass per volume and so when homogeneous (and incompressible), an amount increase/decrease does not change density, as the mass and volume change in the same proportioning. Water density is 8.34#/cu ft, whether it is 2 cubic feet or 4 cubic feet.
Either a decrease or increase in temperature will change the density of an object.
Provides high quality optical glass Regis's life I am to them. Pictures detail hundred super bright sunlight such as a beach setting it also enables subjects to stand out from backgrounds and create slow motion picture effects. "ND"
It refracts some and reflects some.