SIDERITE EPIMORPH AFTER CALCITE

For lovers of pseudomorphs, we present this specimen of siderite perimorphic to calcite, now completely dissapeared. It consists of two interpenetrating crystals with scalenohedral shapes truncated at the vertices. A small, fractured crystal allows us to see the empty core of the crystals. A very interesting curiosity from South Africa.

ORIGIN: AGGENEYS, NAMAKWA, NORTHERN CAPE, SOUTH AFRICA

DIMENSIONS: 6,5x4,5x6,9