We love tube agates and tube/moss agates. They are like bits of moss floating in a clear river. Look closely and you can see little bits of "tubes". Sometimes you can see what looks like bits of "moss" too. Hence the name. Usually the color is white and/or clear with blues, greens, and aquas.
This beautiful cab has a nice smooth finish and high polish. This is a "milky" translucent with tubes of green moss swirling through it.