Dragon Minerals - Update March 31, 2019

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15001: Goethite Epimorph after Gypsum - $40
Potosí Mine, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico
Small cabinet - 9.0 x 4.1 x 1.6 cm (3.5 x 1.6 x 0.6 inches)
12 grams (0.03 pounds)
Specimen status: Available     Send an email to order

An epimorph should not be confused with a pseudomorph. An epimorph is a cast formed when a secondary mineral (in this case goethite) coats an initially deposited mineral (in this case gypsum); the initial mineral then dissolves away leaving the secondary mineral by itself. Goethite epimorphs after gypsum have long been Santa Eulalia District classics, but are usually only partial casts. This fine, nifty, tubular specimen is more unusual. This hollow tube has no terminations and nothing I'd call damage. Two previous labels give the locality as 'Condesa Mine" but this is incorrect; read the Mindat discussion on this issue.

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