Tanah Laut (Pontijn), Kalimantan Selatan Province (South Kalimantan Province), Kalimantan Island (Borneo Island), Indonesia

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Placer deposit.

Pontijn (or Pontyn) river, near Asemasen town, SE cost of Borneo.

Exsolution/recrystallization two-stage process from a homogeneous Fe/Cu/Ni sulfide melt : Exsolution into MSS (monosulfide solid solution) and ISS (intermediate solid solution) and evolution of MSS into pentlandite+heazlewoodite and of ISS into chalcopyrite+bornite.

(cf. K.H. Hattori et al. , Min. Mag. , April 2004, V68, N°2, pp. 353-368).

Mineral List

15 entries listed. 12 valid minerals. 1 type locality (valid mineral).

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