Two beautiful orange iron-containing minerals, both very rare, richly presented on one specimen! The piece shows sharp, flat-laying, acicular crystals of Amarantite in sprays to perhaps 5mm. In person, these crystals have a robust, electric orange-red flare to them and are quite eye-visible. Mixed in (close-up photo) are small tufts or ball-shaped clusters of microcrystalline Hohmannite. Associated minerals are Metahohmannite, Kornelite , Chalcanthite, Copiapite, and Picromerite, I am told.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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{{en|1=Amarantite, Hohmannite
:: Locality: Queténa Mine, Toki Cu deposit, Chuquicamata District, Calama, [[:en:El Loa Province|El Loa Province