What Is A ‘Fusion’ Technique?

I’m unaware if this style is already named, but I call it a fusion technique.

The process of creating this dice technique lies in mixing a transparent and opaque dice color together. When mixed together, you get sections of the dice that you can see through and sections that remain solid. Together they can create a swirl inside the die that look like waves about to crash.

This D6 and D4 are a part of the “Garnet” dice set