Suppose you have two minerals. one mineral fractures into rough pieces, and a second mineral breaks into pieces with smooth surfaces.
what does this indicate

If you have two minerals and when they break, their surfaces are different, then the way their atoms are arranged is also different. Different arrangements of atoms means that they are structured differently.

It is meant that like tapestry scientific theories often need to pull out since they are not relevant and often times the whole chain of theories may be pulled out.