So overall this crystal has the power to create a powerful concentrated stream of water before it shatters?

Correct, but it will shatter for non-Anofobi

Vrakenu needs to weave with one's Soul Structure (future Lore Card in the making) to not shatter in use. Anyone can use Vrakenu crystals, but Anofobi and Loma are already well-tuned and trained to these energies, meaning that the crystal wont shatter after use.

However, those who haven't taken the time to connect with the energies will have the crystal they're using shatter