And just to test the opacity - this is Nimbus in a very thin layer over clear. It continues to hold up.
Interestingly - one of the beads cracked (my fault, not the glass) after it went into the kiln. The difference in colour inside the bead is intriguing.
I really rather liked this glass. I'm not a big fan of grey, but I prefer the cool, blue greys and this is definitely one of them.