I had this slab of redwood set aside in my drying room for several months and decided to do something with it yesterday.
I thought it would make a nice serving or display platter. Or.....just a pretty piece of wood.
The wood is a piece of old redwood root.
1st photo is just off the drum sander where I sanded it flat and even thickness at 36 grit.
Next photo sanded at 220 grit. Here the grain and figure start to become visible.
This photo is at 400 grit. Things are starting to look good.
Next step I am going to try out Board Smith's suggestion of wet sanding with mineral oil.