Conglomerate silcrete stone with sharp edge, Red is iron staining - hematite, possibly found in drier areas stone, aboriginal, silcrete, hematite, haematite, stone tools, archaeology, aborigines

Hematite is an iron ore significant for its high iron content (70%) and as being one of the two main iron oxide minerals, the other being magnetite. Hematite has a rating of 5-6 on the Moh's hardness scale and is often found as an accessory mineral in many igneous rocks. (an accessory mineral being "any mineral in an igneous rock not essential to the naming of the rock" - Britannica) Hematite has historically been the mainstay of South Australia’s iron ore production. (Magnetite: South Australia’s potential) Making up the eastern section of the Gawler Rangers, the Middleback Range is a mountain range on the eastern side of Eyre Peninsula in South Australia that has been a source of iron ore (its main commodity in minerals) for over a century. (see https://www.mindat.org/loc-22576.html). "Large reserves of high-grade iron ore were identified in 1890 in the Middleback Range, west of Whyalla. From 1915 these ores were shipped to Newcastle and later to Port Kembla, both in New South Wales. Local production of pig iron began when the first blast furnace was opened at Whyalla in 1941, and construction of an integrated iron and steel plant began there in 1958." (Britannica, South Australia: Resources and power). This area is home to 24 mines/mineral deposits (according to mindat.org, thought the Sarig Map provided by SA gov on their Energy and Mining website indicates significantly more mining leases).This mineral specimen was collected from the Middleback Ranges before the area was identified as holding large reserves of iron ore and being commercially mined and is representative of South Australia's significant and ongoing history of iron ore mining, and its contribution to Australia's steel manufacturing industry of the early 20th century (this specimen being collected in the prelude to these events).A small ferric oxide mineral composition a mid-blue-grey in colour with specks of rust-brown throughout.HEMATITE / (iron oxide) / Locality: Middleback Ranges, S. Aust.middleback ranges, iron ore mining, mining, south australia

From the estate of Jenny Lang, 11 Pearcedale Grove, NunawadingOblong shaped brooch with anthracite or hematite stones (black). Back pin is not originalcostume accessories, jewellery

No. 9 'The Sealers". BHP "History of Bass Strait"Series. Lithograph copy in 'The Illustrated Australian News", May 4th 1881. From the La Trobe Collection, State Library, Victoria. BHP Oil and Gas Division Hematite Petroleum Pty. Ltd. From The Australian Financial Review, 15 Sep 1972HistoricalLarge, black & white lithograph of sailing vessel in rough seas showing seals and rocks, with typed explanation. In the early of the nineteenth century, The sealers took cargoes of up to 100,000 skins per ship. Within 10 years, there were virtually no seals left. Today, the seals are returning to Bass Strait and colonies of them are thriving around the five BHP and Esso offshore production platforms. We enjoy having them around. And we've even made them the stars of "Solstice", a film we've made to encourage an interest in preserving the ecology of Bass Strait.sealing, westernport bay, broken hill proprietary ltd.