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Cassiterite with Quartz and Siderite
Cassiterite with Quartz and Siderite. Cassiterite with Quartz and Siderite.
 

AD96Y6: Group of bright Cassiterite crystals forming complex cyclic twins. They are on a matrix of transparent Quartz crystals with some rough Siderite. This sample was in the Folch duplicates collection, whose label we’ll send to the buyer. It has an added interest because it is from Vale da Ermida, a zone somewhat away from the main mining area and is currently abandoned and awash.
Vale da Ermida, Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Centro  Portugal (±1964)

Specimen size: 7.7 × 5.7 × 4.9 cm = 3.03” × 2.24” × 1.93”

Main crystal size: 1.1 × 0.9 cm = 0.43” × 0.35”

Former collection of Alain Martaud



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