Drusy quartz crystal is very similar to teeny  Barnacles. It presents as very small points that are described as ‘a myriad of very closely set tiny crystals’.

Drusy quartz crystal consists of tiny crystal points in their very formation.

The tiny crystals making up the Drusy look like sugar crystals.

Because they are tiny crystals forming, I think of Drusy quartz crystal as assisting with ideas or thought forms ready to spring forth and grow.