Lexi Webster
Calcite is a common carbonate mineral and the most stable polymorph of calcium carbonate. It is found all over the world and has been used by humans for thousands of years. In Australia, calcite can be found in the Cliefden Caves in New South Wales, as well as in various locations in Victoria, such as the Boral Limited quarry in Bundoora, and in New South Wales, such as the Prospect Quarry in Prospect Hill.
| Characteristics | Values |
|---|---|
| State | Victoria |
| City | Bundoora, City of Whittlesea |
| Company | Boral Limited |
| Type of Mine | Quarry |
| State | New South Wales |
| City | Black Head, Shelly Beach, Ballina, Rous County |
| Type of Mine | Natural Cave Pool |
| Cave | Cliefden Caves |
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What You'll Learn
Cliefden Caves, New South Wales
The Cliefden Caves in New South Wales, Australia, are a heritage-listed geoheritage site, recognised for their cultural, historic, and scientific significance. Located on the Belubula River, between the towns of Carcoar and Canowindra, the caves are approximately 20 km east of Canowindra. The site is of cultural and spiritual significance to the Waradjuri and Wiradjuri traditional owners, who continue to visit for ritual purposes and cultural obligations.
The Cliefden Caves are one of the most cavernous limestone areas in New South Wales, with over 100 recorded caves and more than 120 identified karst features, including well-developed caves, dolines, tufa deposits, and a rare thermal spring. The caves are renowned for their abundant and well-preserved fossils, particularly at Fossil Hill and Trilobite Hill, making them a significant site for palaeontology and geology. The limestone in the caves was first discovered in mainland Australia by Surveyor Evans in 1815 and was later recognised as fossiliferous Ordovician limestone by Stevens in 1952.
The Cliefden Caves have also garnered attention for their aesthetic appeal, boasting a full range of speleothems, including rare blue stalactites, stalagmites, columns, helictites, and "bacon" draperies. The speleothems vary in colour, ranging from clear to pure white, yellow, orange, and even rare shades of sky blue and aqua green. The Main Cave, one of the larger caves in the system, features impressive "dogtooth spar" crystals, formed when carbon dioxide escaped and solid calcium carbonate precipitated from the water.
Despite their significance, the Cliefden Caves face threats from proposed dams on the Belubula River, which could result in the flooding and destruction of the caves and their surrounding areas. Efforts to protect this invaluable site have led to its inclusion on the National Trust Register and its nomination for listing on the State Heritage Register. The ongoing research and conservation initiatives underscore the importance of preserving the Cliefden Caves as a natural and cultural treasure in New South Wales.
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Prospect Quarry, New South Wales
Prospect Quarry, located in Prospect Hill, Prospect, Cumberland County, New South Wales, is approximately 29 kilometres west of Sydney. The quarry has contributed a significant amount of crushed rock, also known as blue metal, for road and building construction in the Sydney region. Quarrying in the area commenced around the early 1800s, with naturalist Charles Darwin visiting Prospect Hill in January 1836 to observe its geology. By the late 19th century, coarse-grained picrite and other doloritic rock types were being extracted from the west and north sides of the hill.
Prospect Quarry is particularly known for its world-class Prehnite and has been a source of various minerals, including calcite. Calcite, a common mineral and a type of carbonate mineral, is the most stable polymorph of calcium carbonate (CaCO3). It is often found as a component of limestone and plays a crucial role in the shells of marine organisms, such as plankton and red algae. Additionally, calcite has been utilised by ancient civilisations like the Ancient Egyptians, who carved many objects from this mineral.
The history of Prospect Hill is significant, as it was one of the first places in the Colony of New South Wales where emancipated convicts were granted land for farming. The hill also holds cultural importance, serving as a site of early European exploration and settlement, as well as a location of conflict and reconciliation with Aboriginal people. The landscape has retained its continual pastoral use since the early colonial days.
Over time, quarrying activities have had a substantial impact on Prospect Hill, with companies gradually taking over more land for mining. The southern portion of the hill, located within the Boral Brickworks site, has been extensively quarried. The site is now facing developmental pressures that could affect its historical and archaeological significance.
Today, the quarry is no longer operational, having ceased operations around 2010. The site has been redeveloped for housing and light industry, with the former quarry gap transformed into a new suburb called Pemulwuy, named after an indigenous leader.
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$25.95
Chadburn's Quarry, New South Wales
Chadburns Quarry, located in Kyogle, Rous County, New South Wales, Australia, is known for its mineral deposits, including natrolite and aragonite. The quarry is situated about three miles from Kyogle, off the Murwillumbah Road, and at the end of Quarry Road. It is located on Fairy Mount, which is also within the parish of Fairy Mount.
Chadburns Quarry is a basalt quarry, which means it primarily extracts basalt rock. Basalt is a dark, fine-grained volcanic rock that is commonly used in construction and as an aggregate in concrete mixes. It is also a significant source of mineral specimens, including natrolite and aragonite, which are found in the local area. These minerals have been referenced in publications such as "The Occurrence of Zeolites at Kyogle, New South Wales" by Hodge-Smith, published in the Records of the Australian Museum in 1929.
The quarry has since been rehabilitated and is now part of private farmland. While it is possible to visit such sites, it is important to obtain the necessary permissions and ensure awareness of safety precautions.
In addition to Chadburns Quarry, there are other notable locations in Australia where calcite can be found. For example, in New South Wales, the Zinc Corporation Mine in Broken Hill has yielded specimens of calcite crystals. Furthermore, in Victoria, calcite has been discovered in various quarries, including Corporation quarries in Clifton Hill, Collingwood, and the Boral Limited quarry in Bundoora, City of Whittlesea.
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Iron-bearing Calcite Boral Limited quarry, Victoria
Calcite is a common mineral found all over the world. In Australia, it is found in various locations, including Victoria.
The Iron-bearing Calcite Boral Limited quarry is located in Bundoora, in the City of Whittlesea, Victoria. The quarry is no longer operational, and the site has since been receiving clean fill material, with plans to redevelop it for housing and other uses.
The Boral Limited quarry in Bundoora has yielded various specimens of iron-bearing calcite, also known as ferroan calcite. This mineral is a variety of calcite that contains small amounts of iron. It is described as having a golden colour and forming club-shaped or spherical structures.
Photographs of the iron-bearing calcite from the Boral Limited quarry in Bundoora, Victoria, have been captured by various collectors, including Volker Hoppe, Keith F Compton, Judy Rowe, and Mathew Latham. These photographs showcase the unique characteristics of the mineral, such as its colour, shape, and crystalline structure.
The iron-bearing calcite from the Boral Limited quarry in Victoria is an example of the diverse mineralogy found in Australia. The mineral's aesthetic and structural properties make it a valuable addition to collections and for scientific study.
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Calcite Cairns Bay, Victoria
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite is found all over the world, including in Australia.
In Australia, calcite has been found in several locations, including Victoria, New South Wales, and Queensland. In Victoria, specifically, calcite can be found in the Cairns Bay, Flinders area, on the Mornington Peninsula. This area is known for its vesicular Palaeocene basalt, which contains a variety of minerals, including calcite. Calcite is also found in the Boral Limited quarry in Bundoora, in the City of Whittlesea, and in corporation quarries in Clifton Hill, Collingwood, in the City of Yarra.
The calcite found in Cairns Bay is believed to have formed through the reheating of zeolites by a younger basalt flow, which partly dissolved the existing zeolites and redeposited new minerals as the solutions cooled. This process has resulted in the presence of calcite in the area.
In addition to its geological significance, calcite has cultural significance as well. Ancient Egyptians carved many items out of calcite, relating it to their goddess Bast. The term alabaster, which is used in archaeology and the stone trade, is derived from the close association between calcite and the goddess Bast.
Furthermore, calcite has practical applications. Large calcite crystals are used in optical equipment, and limestone composed mostly of calcite is used in various industries. Calcite is also found in the shells of marine organisms, birds' eggshells, and some sponges, demonstrating its importance in the natural world.
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Frequently asked questions
Calcite is found in several places in Australia, including:
- New South Wales
- Victoria
- Cliefden Caves
In New South Wales, calcite can be found in the following locations:
- Prospect Quarry, Prospect Hill, Prospect, Cumberland County
- Chadburn's Quarry, Kyogle, Rous County
- Manganese-bearing calcite in Broken Hill, Yancowinna County
- Black Head, Shelly Beach, Ballina, Rous County
In Victoria, calcite can be found in the following locations:
- Cairns Bay, Flinders area, Mornington Peninsula Shire
- Boral Limited quarry, Bundoora, City of Whittlesea
- Corporation quarries, Clifton Hill, Collingwood, City of Yarra
