TEXAS ROCK & MINERAL SET View cart “SOLAR POWERED DERRICK” has been added to your cart. $36.00 Add this set to your little geologist’s collection. Big Geologists love it as well! Out of stock Categories: Children, Mineral & Fossil Related products Metal Industry Signs $12.99 Select options STORYTELLER WITH A BRUSH – DVD $20.95 Add to cart Midland: Postcard History Series $21.99 Add to cart Sale! DRAWING CONCLUSIONS FROM THE OIL PATCH $9.95 $1.00 Add to cart