Siderite-Sphalerite after Calcite

specimen number:
1651715

location:
Broken Hill mine, Aggeneys, Namakwa, Northern Cape, South Africa

description:
Collected in the mid 2000's, this neat replacement specimen exhibits crystals of sharply formed calcite measuring to almost 2.0 cm in size, these now completely replaced by micro crystalline siderite and sphalerite. These crystals are now hollow casts the calcite completely gone. This one is in good condition.

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