Growth Interference quartz crystal has missing areas in the main point where another mineral was growing during the development of the crystal and then subsequently disappeared.

Lots of times it looks like a buzz saw was taken to the crystal or presents as squares or geometry like in the illustration. They look magical to me.

The properties of Growth Interference quartz crystal represents  how we can adapt and grow around a certain situation, and then if the situation no longer serves, it leaves, but not without leaving a mark.

Because the interference is caused by non-crystal influences, I see  Growth Interference as referring more to non-human influences (such as environmental circumstances or health issues, etc.)