Burnished rib on left (one with reflection)

I have begun to prepare the bowl for varnishing. After scraping all the residual hide glue from joining the ribs, any irregular areas are sanded smooth. I burnish the wood with a very hard and smooth stone before applying any varnish. I show an example of what a burnished vs. non burnished rib looks like in the photo. The wood is pacific yew and it is very dense. It burnishes to a nice luster pretty quick.