A microkernel implements all drivers as user-space programs, and implements core features like IPC in the kernel itself. A monolithic kernel, however, implements the drivers as a part of the kernel...
Fine bone china is more delicate than porcelain, with a warmer, translucent finish. It is typically more expensive than porcelain. Fine china is produced without the inclusion of bone ash from similar materials to porcelain.
Porcelain can be divided into the three main categories (hard-paste, soft-paste and bone china), depending on the composition of the paste used to make the body of the porcelain object and the firing conditions.