Remarkable hematite contact twin, 21 mm, N'Chwaning II Mine, Kuruman, Kalahari manganese field, South Africa. photo

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Remarkable hematite contact twin, 21 mm, N'Chwaning II Mine, Kuruman, Kalahari manganese field, South Africa.

Contact twin on {012}.

See: R. Peter Richards & Mirjan Žorž (2017) Hematite Twins from the Kalahari Manganese Field, Northern Cape Province, South Africa, Rocks & Minerals, 93:1, 65-73, DOI: 10.1080/00357529.2018.1383833

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