Take three:
Crystallization (Su): On a successful bite attack, the crystal spider injects its powerful venom. The victim must succeed on a DC X Fortitude save or be slowed (as the spell) for five rounds. On the sixth round, the victim is paralyzed and its throat crystallizes, preventing the use of speech, verbal components, and command words. Three minutes later, the character is completely crystallized (treat as petrified). Once crystallized, a victim may only be revived by resurrection, true resurrection, miracle, wish, or greater restoration. Limited wish also revives a crystallized victim, but the victim must make a new Fortitude save each week or begin the crystallization process anew. The crystallization process can be slowed or halted before petrification by any of the spells listed above or delay poison, neutralize poison, or stone to flesh. The save DC is Constitution-based. Creatures with immunity to poison are unaffected, and creatures resistant to poison receive their normal bonus on their saving throws.