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 is the term currently being used to refer to the highest quality ceramics. Kaolin is used in the manufacture, and it is usually very delicate. Another member reminded me that the most significant identifying factor for porcelain is it's translucence. You can see a shadow of your finger through it if you hold it up to the light.