Are non-homogeneous materials (such as granite and concrete) be legal assuming they meet all of the other material to be considered raw stock?
For example, the argument can be made that granite is 1 material and thus if it is bought in a cube, it is a legal material. However, the argument could also be made that since granite is a non-homogeneous materials, the VURC team is actually buying feldspar, quartz, mica, and amphibole minerals in a pre-assembled component. Which interpretation is correct? A link to an example material is provided: https://www.grainger.com/product/STARRETT-Granite-6-Face-Cube-Grade-6RDH8