Marcasite Stalactite from Linwood Mine DX3175 quartz carving forms through the combination of

forms through the combination of calcite

Green opal is a stunning gemstone that is as unique as it is beautiful

ranging from light to medium green

creating visually appealing patterns that enhance its ornamental value

Dimensions: 1 x 0

Marcasite Stalactite from Linwood Mine DX3175 quartz carving forms through the combination ofMarcasite 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