Baryte

Baryte from the mine recorded as Oraparina Mine, Flinders Ranges, South Australia, Australia, measuring 60 × 50 × 95 mm and weighing 327 grams. With a longest dimension of 95 mm, this specimen has a substantial scale for a collection devoted to South Australian minerals or to Baryte occurrences.

Baryte is barium sulphate, a mineral whose relatively high density is a characteristic consequence of its chemistry. It occurs in several geological settings, including mineral veins and sedimentary environments. That breadth makes locality information especially valuable: specimens sharing the same mineral name can represent quite different geological histories and collecting traditions.

Honey to amber tones appear across broad tabular faces, with paler edges giving definition to the intergrown cluster. The substantial-looking plates create a stepped outline rather than a smooth mass. Turning the piece slightly changes which faces catch the light, revealing the arrangement of the crystals and the varying depth of colour within the group. This specimen comes from the Anne McDonald Collection. The combination of a named collection, a specific mine attribution and substantial dimensions provides a useful starting point for its next chapter. It offers a South Australian contribution to a mineral family with worldwide occurrences, allowing the locality's place in a broader Baryte collection to be appreciated without overstating the individual specimen.