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Marcasite Stalactite from Linwood Mine DX3185 picture sandstone Rainbow Obsidian is another form

SKU: 39822902324
4.1
USD52.50 USD96.50 Outpost rate

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Description

Rainbow Obsidian is another form of Sheen Obsidian that gets its iridescent sheen from inclusions of magnetite nano-particles

Weight: 240 grams

Weight: 91

A very interesting combination

formed over 2 billion years ago in rare chamber pegmatites that allowed exceptionally large and high-quality crystals to grow deep underground

Marcasite Stalactite from Linwood Mine DX3185 picture sandstone Rainbow Obsidian is another formMarcasite Stalactite from Linwood Mine Approx. Dimensions: 2x2x0. 75 inches Approx. Weight: 20. 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 clusters

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