PETRA MICA F/M/C is a naturally occurring sheet silicate mineral used as an effective lost circulation material (LCM) in drilling operations. Its flaky and lustrous structure helps bridge fractures and porous zones, reducing fluid loss while maintaining drilling efficiency. PETRA MICA is chemically inert, compatible with all drilling fluid systems, and has minimal impact on mud rheology. Available in Fine, Medium, and Coarse grades, it provides flexible solutions for controlling seepage loss and treating various lost circulation conditions in both water-based and oil-based mud systems.