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Scoria forms as part of a lava flow usually near the surface of the flow
polished on both sides
Weight: 963 grams
Dimensions: 3 x 1 x 1 inches
gem-quality sulfur crystal specimens from the famed El Desierto Mine in Potosí
Marcasite Stalactite from Linwood Mine DX3161 iridescent goethite Scoria forms as part ofMarcasite Stalactite from Linwood Mine Approx. Dimensions: 1. 5x1x0. 5 inches Approx. Weight: 6. 8 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
US$ 80.00
US$ 160.00