What are these Hones?

So I bought some "practice" razors off the Bay (to practice honing and restoration) and the lot came with two stones. I didn't even look at the stones but I finally cleaned them up. I'm not sure what they are or if they are even razor hones, could be slate for all i know. The surface of this hone is glass smooth. There is a red vein running through it, it's next to impossible to raise a slurry on (there was a slurry stone in the lot). Anyone know what it might be? I've looked through all the "what is this hone?" posts and am not confident that I know what it is. It also doesn't seem to hold water, if you wet the surface the water just kinda of pools.

Attachment 135364Attachment 135361Attachment 135362Attachment 135363Attachment 135360
Attachment 135355Attachment 135356Attachment 135357Attachment 135358Attachment 135359

PHIG, or Chinese 12K. Should be plenty of info here if you search with those terms.

Definitely a PHIG....Looks just like mine!! Should be a decent finisher....

Yes to the above answers. The one with orange stripe could have been parted off from my favorite C-12k. Those hones with inclusions seem to cut faster. I am not at all sure that bit is useful and true information.
~Richard

Thanks everyone, mystery solved! I will have to give them a go next time I refresh/hone a blade.