Thanks for the post, Grant. I actually know a little about the Ellensburg Blue agate. When I was a kid, we had a river front summer cabin on the middle fork of the Teanaway River NW of Ellensburg. The woman in the video says it's the third hardest gemstone. It's actually an agate, with minerals that make it harder than quartz, sometimes as hard as a sapphire. We found a few, two outstanding ones, which my parents made into a large men's cabochon ring, that was later stolen, and a large women's cab ring, that now belongs to my oldest daughter. Both were bluer than a robin's egg.
These two, when looked at under a 10X loupe, had tiny red spots in them. They can be found in the river, local dry washes, but I have heard the best way to find them is to walk the hay fields after plowing in the spring, after some rain has fallen. There used to be a number of rockshops in Ellensburg, and one in the little watering hole of Liberty heading up Blewett pass. They are unique, and rare.
