Roads Lined With Gold in This Australian City

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#kalgoorlie #gold #goldprospecting
Kalgoorlie’s golden streets, literally paved with gold-bearing telluride ore, were an accidental testament to the region’s immense wealth. At a time when these mysterious rocks were mistaken for worthless pyrite, miners unknowingly used telluride-rich gravel for roads and even constructed rudimentary buildings with it. It wasn’t until 1896, three years after Paddy Hannan’s legendary gold discovery, that the true value of tellurides—compounds of gold and tellurium—was realized, sparking a frenzy as locals tore up the streets in search of gold.

Delve into the ancient geology of the Yilgarn Craton, where an Archean subduction event billions of years ago formed volcanic arcs and greenstone belts, laying the foundation for Kalgoorlie’s incredible mineral deposits. These greenstone belts, remnants of ancient oceanic crust and volcanic activity, were created during tectonic collisions that concentrated gold and tellurium through hydrothermal processes.

We also examine the challenges early miners faced in extracting gold from tellurides. Roasting tellurium ore in rudimentary furnaces released toxic tellurium dioxide fumes, while cyanidation later became the breakthrough method for dissolving gold. See how these processes evolved, with small-scale stamp batteries and cyanide vats giving way to more advanced furnaces and industrial operations, including the iconic Super Pit that now dominates the Golden Mile.

Here is a link to the video I made about the Roads Lined With Gold in Ballarat:


Here are the studies used to construct this video:







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OzGeology is an Australian-based YouTube channel that specializes in creating high-quality documentaries on Earth sciences and natural disasters. The content is designed to be easy to digest and covers a wide range of topics, not only focusing on geology but occasionally exploring other scientific areas as well.