Missouri head waters mystery

[Hollyp]

During a vacation in the early 00s we visited the MO river headwaters. I have always picked up rocks and minerals as souvenirs. And I found this odd little guy and have had it since. Still haven't figured out exactly what it is.

It's got 3 colors to it. White, red, and more of a brown color. Does this look familiar to anyone?!

 

[Zee]

Might just be me? But I can't see the pictures for some reason.

 

[Hollyp]

Might just be me? But I can't see the pictures for some reason.

let's try this.

 

[ice9]

A bit of conglomerate?