e4c6b47f___Miscellaneous___Status_Guide__Effects_On_Character
[Status Effect] Slow Petrify [How To Cure Effect] Soft item, Remedy item, Esuna spell [Effects On Character] 
A countdown appears over character's head and the character glows white. When the countdown reaches 0, the character will be Petrified.
The RPG Place - Final Fantasy VII - Miscellaneous - Status Guide
Effects On Character