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25" (85 mm x 31 mm) - Center hole measures 1" (27 mm)
characterized by a combination of blue opal and intricate scenic patterns
these specimens highlight calcite’s classic rhombohedral form and natural luster
which creates a glowing effect reminiscent of the moon's glow
Minas Gerais
Marcasite Stalactite from Linwood Mine DX3170 mexican 25" (85 mm x 31Marcasite Stalactite from Linwood Mine Approx. Dimensions: 1. 5x0. 75x0. 5 inches Approx. Weight: 11. 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
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