Marcasite Stalactite from Linwood Mine DX3175 obsidian This soft pink calcite specimen

This soft pink calcite specimen has multiple bladed terminations on the top and the underside

or "play of color

Dalnegorsk

Approximately 6 to 8 million years ago (Miocene epoch)

Locality: Fibbia

Marcasite Stalactite from Linwood Mine DX3175 obsidian This soft pink calcite specimenMarcasite Stalactite from Linwood Mine Approx. Dimensions: 2x1. 5x1 inches Approx. Weight: 20. 4 grams Locality: Linwood Mine, Buffalo, Scott Co., Iowa, USA Marcasite specimens from the Linwood Mine (Buffalo, Scott County, Iowa, USA) are eye catching mineral pieces prized by collectors for their metallic luster and distinctive crystal forms. Marcasite is an iron disulfide (FeS?) mineral that crystallizes in tabular, spear like or stalactitic clusters