This came out of your sacred river near Glen Rose? Find that a little hard to believe, cause it shouldn't be there. Llano uplift area maybe, but way farther west is a better guess. Actually, looks like a scone from Tiger Corner. Man they taste great. I suppose though the rock could have come from Big Rocks Park and the crystals are garnet or spinel, most likely garnet. Nice find. Very nice. I have seen many rocks like that, but not with stones that size. What are you gonna find next, Jim Bowie's Lost Silver Mine?