Malachite

The bright green of the malachite mineral loses no vibrancy from being ground into a powder. Minuscule specks of lighter shades are dotted throughout, adding to the multi-hued effect and the light dust shifts slightly in any breeze. When smoked, malachite bestows an anti-weapon field that lasts until taken down by others or you act aggressively.

Its rebounding effect is directly analogous to smoking the skullcap herb.