Tourmaline is a group of minerals belonging to the complex borosilicate mineral class. These minerals are known for their striking and varied colours, making them prized gemstones. Tourmaline crystals can come in various shades, including pink, green, blue, brown, black, and colourless. They are often transparent or translucent. Tourmaline's chemical composition is complex, but it typically includes elements such as aluminium, iron, magnesium, sodium, lithium, and potassium. The specific arrangement of these elements in the crystal lattice gives rise to the different colours and properties of tourmaline specimens. Tourmaline specimens from Beechworth, Victoria, Australia, are a notable part of the region's mineral heritage. These tourmalines are of interest to mineral collectors and enthusiasts. While the tourmaline found in Beechworth is not as well-known as some other tourmaline varieties, it has unique characteristics and a historical context associated with the gold mining areas in Beechworth.The significance of tourmaline in Beechworth, Victoria, Australia, lies in its unique geological and historical context, contributing to both scientific and cultural aspects. The tourmaline mined in Beechworth is a rare and unique variety of tourmaline that is primarily found in the historic gold mining areas surrounding Beechworth. Its occurrence is closely linked to the geological processes that shaped the region during the Gold Rush era. The discovery of tourmaline in Beechworth adds to the rich mineral heritage of the area, which was historically known for gold mining. The specimens serve as a tangible connection to the region's mining history and contribute to preserving its geological legacy. The presence of tourmaline in Beechworth showcases the mineralogical diversity of the area. Tourmaline is known for its wide range of colours and unique properties, making it a valuable subject of study for mineralogists and geologists. Tourmaline specimens from Beechworth have educational significance, providing opportunities for research and study. They offer insights into the geological processes and mineral formation in the region, contributing to a better understanding of Earth's geological history.A hand-sized solid mineral specimen in shades of brown, green, light grey and dark greyTOURMALINE (schorl) / (Silicate of boron and aluminum) burke museum, beechworth, indigo shire, geological, geological specimen, mineralogy, tourmaline

Calcite is a common mineral and is found worldwide due to it being a primary component of many other rocks such as limestone and marble. It is a softer mineral that scratches easily and is often found colourless or with a cream/white shade but may show up in colours such as red, yellow, green, and violet. In sedimentary rocks calcite is often found in the form of invertebrate shells, making it an important biomineral. Calcite is used in many industries such as farming, building, and medicine. This particular specimen was found at Broken Hill mine in Broken Hill, New South Wales, Australia. Broken Hill mine is one of the largest mines working silver and lead in Australia and at its peak employed 6500 staff across 7.5km long of land. The site was founded in 1883 by Charles Rasp, where Rasp and 6 other men from various backgrounds came together to form the first BHP mine. It has become one of the most popular mining sites due to its abundance and longevity. The ore body was created 1685 million years ago due to volcanic activity causing heated seawater to flow up through the seafloor where it mixed with the cold water creating black sulphide precipitates. These then settled back onto the seafloor forming sediment layers rich in minerals. Over time the land eroded until it was discoverable by humans.Historically this specimen is significant due to the origin of its location. Broken Hill mine has a long history in both its location and its findings and has resulted in a variety of minerals being discovered at its site. It is beneficial in the understanding of the Australian landscape over millions of years. Due to its properties, calcite today is used in a multitude of different industries such as agriculture, construction, medicine, and farming.A small sized calcium, carbon and oxygen made mineral specimen in shades cream and greycalcite, mineral, limestone, marble, sedimentary, invertebrate shells, biomineral, farming, medicine, broken hill, broken hill mine, new south wales, charles rasp, syndicate of seven, volcanic activity, black sulphide precipitates, calcite crystals, beechworth museum, indigo shire, beechworth

Majority of Galena in Australia is found in hydrothermal deposits emplaced around 1680 million years ago which have been heavily metamorphosed. Galena is the natural mineral form of lead sulfaide. It occurs generally as fine to large crystals due to syntectonic remobilization at low temperatures and moves to a suitable location. The colour is a shining lead and silvery gray with high specific gravity between 7.2 and 7.6 gms/cm3 and contains 86.6 lead sulfaide in its purest form. Its cyrstal system is cubic with perfect cleavages, and contract penetration and lamellar twinning. This particular specimen is from the Broken Hill mine, it is one of the largest lead mines located in Western New South Wales and still has ore reserves amounting to 20.9 million tonnes of ore grading of 7.4% lead, 9.4% zinc, and 61.5 million oz of Silver. Throughout its history, it has produced over 200 million tonnes of ore throughout its 127 years of mining history dating back to 1885. Galena mineral ore found in Australia is considered rare, as it is only currently found in the Broken Hill Mine of Western New South Wales. It represents heritage value through the systematic collecting of the geological surveyers in Victoria and Australia during the early to late 19th Century. The fact that it is only found in one mining area of Australia, shows that this specimen is rare for examples of Australian Galena. This mineral specimen is one part to a larger collection, aquistion, and distribution of Garnet in Galena around Australia and parts of the world and donated to the Burke Museum between 1860-1880. While this specimen was not found by the Victorian Geological Survey, it shows the historical need for mapping geological areas around the Gold Rush region to further identify areas of precious metal and gem aquisition. Additionally, collecting these specimens was an important part of mapping the scientific make up of the earth's surface. Many were sent to institutions for further contribution to research and scientific knowledge of the specimens. A solid coin-sized lead and zinc sulphaide and zinc silicate ore mineral in shades of black and red with shiny black points. GARNET CRYSTALS in / GALENA (lead sulphide), / SPALERITE (zinc sulphide), / WILLEMITE (zinc silicate) ore. / Locality: Broken Hill, NSWburke museum, #beechworth, indigo shire, beechworth museum, geological, geological specimen, mineral, galena, galena quartz, broken hill mine, broken hill, nsw