It was going to be a turquoise scaled one, but didn't have the saw to cut the fist size turquoise. The wet tile saw I have didn't have enough exposed blade to cut through the fist size chunks of turquoise we recently purchased. Kingman was out of the scrap slabs I bought the last time... and we thought we could make passes, flip the rocks and cut them again. Nope, too thick.
I settled on tortoise shell. I had a couple scales I picked up at Jantz in the sale bin. Have had them six months, just got off knives while I was focused on the projects around the farm, and shooting. I started a couple days ago, working in short sessions like I usually do.
The first session I prepped the backing and glued that on, then moved to giving the spine some special attention with the dremel and files. It's looking good. This morning I went out and took the scales out of the clamps, laid out the pattern and started cutting out and shaping the scales. I worked a couple hours, then took a break. Once the knife is done, I'll post a couple pictures before I make a sheath.
If the knife turns out as well as I hope, someone will get this one for a gift this Christmas.
if not, I guess it will become a working knife somewhere around the farm. 
Sorry, I didn't take my phone when I first started, so no work along pics....