- Limonite, Pyrite
- Miniature, 4.6 x 4.5 x 3.8 cm
- Minas Gerais, Southeast Region, Brazil
- Ex. Dr. Eugene Meieran
This is a rather common type of pseudomorph (limonite is hydrated iron oxide and pyrite is iron sulfide), appearing at various localities around the world, but not often seen from Brazil like this large one is. Ex. Gene Meieran Collection.