Corroded nail with rectangular shaft that narrows to a blunt tip.archaeology, historic building, former royal mint

Corroded nail with rectangular shaft that narrows to a blunt tip.archaeology, historic building, former royal mint

Corroded nail with rounded shaft and consistent in diameter to a pointed tip.archaeology, historic building, former royal mint

Corroded nail with rounded shaft and consistent in diameter to a pointed tip.archaeology, historic building, former royal mint

Corroded nail with rectangular shaft narrowing to a blunt tip. The shaft is pinched below the head and there is a white deposit, possibly paint on the nail head.archaeology, historic building, former royal mint

Corroded tack with rectangular shaft narrowing to a blunt tip. The head is covered with lead.archaeology, historic building, former royal mint

Corroded nail with rectangular shaft narrowing to a blunt tip. The head is slightly irregular. Horizontal incised lines on shaft below head.archaeology, historic building, former royal mint

Three corroded nails with rounded shaft consistent in diameter to a pointed tip.archaeology, historic building, former royal mint

Two corroded screws with circular narrowing to a pointed tip. Incised screw grooves extending down the body of the shaft. Incised notch extending across the nail head.archaeology, historic building, former royal mint

Three corroded screws with circular narrowing to a pointed tip. Incised screw grooves extending down the body of the shaft. Incised notch extending across the nail head.archaeology, historic building, former royal mint

Corroded screw with circular narrowing to a pointed tip. Incised screw grooves extending down the body of the shaft. Incised notch extending across the nail head.archaeology, historic building, former royal mint

Square-shaped nut with a circular perforation measuring 1.3cm with interior grooves.archaeology, historic building, former royal mint

Corroded nail with rectangular shaft that narrows to a blunt tip. The head is hooked and appears to have been a secondary manufacturing process, attached to a machine cut shaft.archaeology, historic building, former royal mint

Alloy clock hand with a circular plate and pointed tip. archaeology, historic building, former royal mint

Galena is the natural compound of lead and classed as a sulphide, it crystallises in a cubic pattern and its chemical formula is PbS. Galena is a primary source of both lead and silver. This specimen of Galena comes from Broken Hill. Broken Hill has one of the world’s largest and most significant deposit of ore for the production of lead. Mining of Galena at Broken Hill began with the staking of land by Charles Rasp in 1883. By the following year, in 1884, Rasp and six others had formed Broken Hill Mining Company. Broken Hill Mining Company eventually evolved into BHP group limited and is currently the largest mining company in the world and the largest company in Australia. There is archaeological evidence from artefacts discovered in Turkey that humans have been extracting lead from galena by the process of smelting since at least 6500 BCE. This specimen also has quartz on the top surface which is frequently discovered alongside Galena. This mineral specimen is of historic significance as a sample of Galena extracted from Broken Hill during the 19th century. Mining for Galena in Broken Hill begin in 1883 by Charles Rasp and evolved into the world’s largest mining company – BHP Group Limited. Broken Hill is one of the world’s most significant deposits of ore for the production of lead. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A flat, hand-sized, grey sulphide specimen that is the natural compound of lead with a quartz formation on the top surface. Existing Label: GALENA / (with quartz) / Locality: Broken Hill / N.S.W 120 x 70 x 29geological specimen, geology, geology collection, burke museum, beechworth, galena, galena quartz, quartz, charles rasp, broken hill mining company, bhp group limited, bhp, lead, ore, lead sulphide, sulphide, silver, broken hill