This Specimen has been sold.
1.6" Kidney Ore (Botryoidal Hematite) - Argentina
This is a shiny, metallic specimen of thin bladed hematite from Argentina. It has a wonderful luster and measures just over 1.6" wide.
Hematite is a fairly common mineral, typically responsible for the red-brown coloration that can be found in other minerals and rocks. The chemical composition of hematite is Fe2O3, occasionally containing small amounts of titanium (variable formula (Fe,Ti)2O3). Much of the time, non-crystalline hematite specimens are the result of a transformation from limonite following loss of water.