Oraparinna or Bunkers Hill mine is the largest operating underground mine in SA and has produced more than 50% of all barite and nearly 90% of industrial grade barite mined in SA. It has been the largest supplier of industrial grade barite in...

2 small vertical lodes which cross cut dolomite, contain inferred reserves of 1100 tonnes of oil drilling grade barite. Selective mining should also yield industrial grade, if deeper barite is less iron stained. Neither lode has been worked.

Production totals 9 581 tonnes to end of 1983. Remaining barite is ferruginous or thin requiring extensive mine development.

Comprises numerous small, discontinuous veins and pods scattered over 4 hectares. Host rock is faulted Elatina Formation feldspathic sandstone and to lesser extent Nuccaleena Formation dolomite. The barite is generally white but commonly contains...

Reserves of 2500 tonnes (indicated) and 75 000 tonnes (inferred) is largely from no..2 Lode. Hand sorting is necessary to produce industrial grade.

Barite with abundant botryoidal goethite and quartz formed during Ordovician Delamerian Orogeny as infillings of fissure near regional northwesterly fault. Largely mined for oil drilling grade barite. Uneconomic tonnages remain.

The diapir forms the core of large domal structure and contains large rafts of Sturtian sediments and Willouran dolerite in brecciated matrix. Surrounding country rock, with steep overall dip away from the diapir, comprises Sturtian shale, siltstone,...

Siliceous barite infills steeply dipping fractures within Sturtian sediments, adjacent to the southern margin of the Oraparinna Diapir. The lodes were mapped, surveyed and sampled. Barite production has been small and intermittent, 1000 tonnes from...

At Howard Lode, adjacent to the extreme SE corner of the Oraparinna Diapir, barite infills steeply dipping fractures within Sturtian Yudnamutana Subgroup. Sediments have been folded around the diapir, and barite veins are parallel to the axial plane...

Over 12 000 tonnes of barite have been produced, 11 km SSW of Oraparinna Barite Mine in Class B Environmental area. 4000 tonnes remain in blocks, fragmented sheets and shallow dipping veins + 10 000 tonnes if deepened, and 2500 tonnes inferred east of...

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At Oraparinna, in the Flinders Ranges, barite has formed in fracture zones cross-cutting an Elatina Formation siltstone, within the Umberatana Group of Marinoan age. The occurrences are in a Class B Environmental Area as defined in the Flinders...

South Australia has been a traditional source of non metallic minerals. Those minerals currently being mined that offer scope for expansion is – Barite – In pigments, drilling muds, the manufacture of barium chemicals and for medical purposes...

Geological data indicates deposits have similar Cu - U mineralization. The Mount Painter deposits occur in Radium Ridge Beds of Sturtian age unconformably overlying Radium Creek Metamorphics and underlying Mount Gee Beds. Recent work suggests these...

At a meeting between officers of the South Australian Department of Mines and Amdel, held in November 1976, it was agreed that Amdel should investigate the potential for the establishment of a barium chemical industry in South Australia. The...

Old mines and prospects were located, sketch mapped and photographed. Ultra- violet lamp was used to search for scheelite in Mt McTaggart area and west of Mt Fitton. Scintillometer was used to search for radioactive minerals.

From 1973 - 1978, 2000 tonnes of barite were produced from Bairstow Lodes and 16 tonnes in 1966 from nearby Tom Hill Lode. The lodes were mapped, surveyed and sampled. The steep barite lodes have formed in a fractured zone which cuts the enclosing...

Since 1962, recorded production from Universal Milling's barite deposit, part of Linke's lode, has totalled 28,542 tonnes. The deposit is in a Class B Environmental Area within the Flinders Ranges National Park. The steep barite lode has formed in a...

Australian Barytes Pty Ltd mines high quality barite from steeply dipping lodes in the Brachina Formation siltstone and shale at Oraparinna in the Flinders Ranges. The barite lodes within the mine comprise the Oraparinna No. 1 Lode System as first...