Description: Limonite after Pyrite Long Draw Graben, west of the Terlingua townsite, Terlingua Mercury District , Brewster Co., Texas, USA 2.3 cm across. Limonite (it has a yellowish streak) after pyrite. The octahedron is 2.3 cm across. Long Draw Graben, west of the Terlingua townsite, Brewster County, Texas

All pictures, text, design © Forum FMF 2006-2024