Limonite (Iron Oxide), Blanco County, Texas
Limonite is an iron ore consisting of a mixture of hydrated iron (III) oxide-hydroxides in varying composition
Location: specific unknown, but a couple of hydrated iron ore samples are listed in Bulletin 1814 of the Univ. TX, page 103 with locations "McMillan's Diggings near Westbrook", and "Iron Rock Creek"
County: Blanco County, Texas
Chemical Formula: generic formula -generally listed as FeO(OH) x nH2O
Specimen size: 3 x 2.75 x 3 inches
Specimen weight: 440 grams
Collection Reference: TMM2068
In the Jackson School of Geosciences Collection at the University of Texas at Austin.