Featured in The Sims: Makin' Magic, the Crystal Clear Ability Rocks are a type of magical growth that will automatically appear around the lot when a family has cast 15 spells or charms while living on a Residential lot in the neighborhood, or 10 while living on a Magic Town residential lot. All spells and charms cast by adult family members count toward the number needed for a new growth, even if they were cast on community lots, but spells and charms used by children do not.
Sims with wands can use these ability rocks to gain special abilities which can be used to entertain (or try to entertain) other Sims, teleport to an area, and even extinguish fires.
There are 7 known different rocks, each with a specific color:
Each ability rock takes a few days to grow to full size, but can be used at once. Children can only gain the 'Hot Foot', 'Magic Trick' and 'Teleport' abilities, and they will keep those abilities after using the Age of Instant charm. Using the Teleport and Extinguish abilities is considered casting, and counts toward the number needed for a new growth.