Epitaxial growths of rutile on a tabular ilmenite crystal pseudomorphized by rutile and hematite. The bright red epitaxial rutile crystals form elbow twins. The pseudomorphized ilmenite crystal has very marked geometric growth forms. Good sized and fine specimen.
Aleksander Rečnik et al. (2015) indicates that this complete transformation involves three successive exsolutions processes: (1) exsolution of ilmenite lamellae from the primary ferrian-ilmenite, (2) exsolution of rutile lamellae from ilmenite triggered by oxidation of ferrous iron and remobilization of cations within the common oxygen sublattice and (3) exsolution of hematite precipitates from Fe-rich rutile lamellae. Remnants of all three processes can still be observed in the samples (Rečnik et al., 2015, Contributions to Mineralogy and Petrology).

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A huge size and old native copper specimen showing arborescent growths of deformated copper crystals. Also accompanied by malachite and some reddish cuprite. From a mine not well represented in collections.

An aesthetic arborescent copper specimen with several defined crystals, with good brilliance an colour. Accompanied by malachite and some quartz. From a lesser-known Zambian copper-cobalt mine. A specimen from past times.

Hopeite and parahopeite are rare hydrated zinc phosphates, with the very best specimens worldwide coming from the famous Broken Hill Mine of Zambia. This specimen shows prismatic crystals of hopeite with brown color, some of them partially covered by colorless small parahopeite crystals. Broken Hill is the Type Locality for parahopeite. Rare species for systematic collector.

Hopeite and parahopeite are rare hydrated zinc phosphates, with the very best specimens worldwide coming from the famous Broken Hill Mine of Zambia. This specimen shows prismatic crystals of hopeite with brown color, some of them partially covered by colorless small parahopeite crystals. Broken Hill is the Type Locality for parahopeite. Rare species for systematic collector.