That won't help. Streak, hardness and specific gravity tests only work on minerals. Those tests will not identify a rock. Clearly, from the appearance this is a rock - not a mineral. Those tests won't reveal what kind of rock you have. If you want to know what the rock is you will need to study the geology, mineralogy and stratigraphy of the immediate area it was found. In other words we need more information to tell you what kind of rock it is.
It is a pretty rock. It might look nice tumbled. It could be chert or one of the many other colors of
chalcedony. It could also be colored blue by the lead content. That area of Missouri is well known for it's lead deposits. It doesn't appear to be blue due to a Tyndall effect so it's probably just another colored chalcedony. There may be a local name for this blue rock. Since we don't know the geological locality all we really have is "blue" and "rock" and a picture.
