and the results came back that there were no inclusions of Cookeite
The siderite gives a wonderful contrast to the quartz with its muted grey and brown color
are significant paleontological finds that provide valuable insights into the life and environment of the Pleistocene epoch
and is sometimes chatoyant
Their crystal-clear appearance and distinctive shape have made them popular among collectors and jewelry enthusiasts
Marcasite Stalactite from Linwood Mine DX3175 emilio mine and the results came backMarcasite 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