Sternkreuz Crystals Initials

[sssurfer]

Hi, I wish to order some glass crystals from Cousinsuk, but they do not provide detailed descriptions for their crystals, just size and initials according with the Sternkreuz classification system.

Does anyone know what those initials mean?

I am expecially interested in the initials CMH, MS, MF and MFH.

My guess so far is that M stands for Mineral glass, and possibly S for Small, F for flat, and H for High.

Very unsure, though, and that "C" stays a mystery...

Btw, I already painfully learned that with "domed" they mean concave-convex crystals, not plano-convex.