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OzGeology is all about geology, mineralogy, volcanoes, and the many natural disasters that have shaped and continue to shape our world.

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Collection 1 Has Sold Out!

Taken from a rare outcrop in the Victorian Goldfields from an area historically worked for gold, silver and antimony.

We have fully sold out of collection number 1.

Thank you to everyone who supported us by buying the specimens.
I appreciate it so much!


OzGeology Articles

A Newly Discovered $1.5 Trillion Lithium Deposit Inside A Super Volcano

A Newly Discovered $1.5 Trillion Lithium Deposit Inside A Super Volcano

Sixteen million years ago, a massive supervolcano erupted in what is now northern Nevada and southeastern Oregon, forming the McDermitt Caldera and laying the geological foundation for one of the largest lithium discoveries in the world. Beneath this ancient caldera, geologists have identified a clay-hosted lithium deposit valued in headlines at up to $1.5 trillion, potentially transforming the global lithium supply chain. This blog explores how Miocene supervolcanic activity, caldera collapse, closed basin lake systems, and long-term sedimentary alteration combined to concentrate lithium into a world-class resource. From Yellowstone hotspot volcanism to modern electric vehicle batteries and grid-scale energy storage, the McDermitt Caldera connects deep-time geology with the future of renewable energy and global geopolitics.

The Oldest River on Earth: The Finke

The Oldest River on Earth: The Finke

The Finke River, also known as the Larapinta, is widely regarded as the oldest river in the world and one of the most extraordinary geological features in central Australia. Flowing across the MacDonnell Ranges in the Northern Territory, the Finke River preserves an ancient drainage pathway that may date back to the late Paleozoic, making it older than the dinosaurs. This blog explores how the Finke survived the Alice Springs Orogeny, deep Cretaceous weathering, etchplanation, tectonic tilting, and extreme desert floods to remain one of the longest-persisting river systems on Earth. From Glen of Palms paleomeanders to the Missionary Plain and the Lake Eyre Basin, we break down the geomorphology, tectonics, and climate history that shaped Australia’s most famous ancient river.

The Richest Silver Deposit on Earth: Cerro Rico

The Richest Silver Deposit on Earth: Cerro Rico

Cerro Rico de Potosí is more than a mountain — it is the richest silver deposit ever mined and one of the most consequential geological features in human history. This blog explores how an ancient Miocene volcanic dome became a world-class hydrothermal silver system, why its geology made it extraordinarily metal-rich, and how its discovery in 1545 transformed Potosí into the financial engine of the Spanish Empire. From the brutal patio process and forced mita labor to the global flow of Andean silver that fueled early globalization, we unpack the deep geological, historical, and economic forces behind this legendary mine, its multi-metal endowment of silver, tin, lead, and zinc, and how centuries of extraction have turned the mountain into a fragile, honeycombed landscape that is still being mined today.

The Recent 13 Trillion Dollar Gold Discovery

The Recent 13 Trillion Dollar Gold Discovery

The claim that Uganda discovered a thirteen trillion dollar gold deposit spread across the internet at lightning speed, but a closer look at the numbers reveals a very different reality. Reports stating that thirty one million tonnes of gold bearing ore contained three hundred and twenty thousand tonnes of refined gold would require an average grade of just over one percent, or more than ten kilograms of gold per tonne of rock, a concentration that has never been observed in any bulk gold deposit anywhere on Earth. This blog unpacks how a likely confusion between tonnes and ounces distorted the story, explains why three hundred and twenty thousand ounces would be geologically plausible while three hundred and twenty thousand tonnes is not, and examines the real gold bearing geology of Uganda, including its ancient Precambrian belts, shear zone hosted systems, and historic mining districts. By separating viral hype from verifiable geology and industry reporting standards, the post shows why the trillion dollar headline is misleading while still highlighting why Uganda genuinely remains an important and underexplored gold province.

The Richest Gold Province on Earth Worth $13 Trillion

The Richest Gold Province on Earth Worth $13 Trillion

The Witwatersrand Basin in South Africa is the richest gold province on Earth, producing around 48,000 tonnes of gold and reshaping the history of mining and geology. Unlike most goldfields defined by narrow quartz veins, the Witwatersrand’s famous “reefs” are ancient river gravels that were buried, metamorphosed, and later modified by hot fluids, thrust faulting, and even a massive asteroid impact at Vredefort. This post unpacks how Archaean rivers, regional metamorphism, structural deformation, and hydrothermal processes combined to create the world’s greatest gold deposit, why the placer versus hydrothermal debate still matters, and what the Witwatersrand tells us about early Earth, ancient atmospheres, and ore formation.

The 6 Trillion Dollar Discovery in Outback Australia

The 6 Trillion Dollar Discovery in Outback Australia

A six trillion dollar iron ore discovery in Western Australia isn’t about a new mine being found — it’s about a geological breakthrough that changed when the world’s largest iron deposits actually formed. New research into the Hamersley and Pilbara iron province shows that high-grade iron ore was upgraded far later than scientists once believed, reshaping models of banded iron formation alteration, ore genesis, and long-term resource potential. This article breaks down how the discovery was made, why the timing matters, and how deep tectonic processes, orogenic activity, and fluid flow turned ancient iron-rich sediments into the backbone of the modern global economy.

How A River Bed Full of Gold Turned Into A Hill

How A River Bed Full of Gold Turned Into A Hill

Hidden in central Victoria is a low hill that was never meant to be high ground at all. This feature is the preserved bed of an ancient, gold-bearing river, locked into hard conglomerate and left standing as the land around it eroded away. Massive rounded quartz cobbles, deep cemented gravels, and early gold rush workings reveal a powerful paleo-river system that once flowed east–west through a landscape completely unlike today. Lightly worked during the 1850s and then abandoned due to the hardness of the rock, this undocumented site offers a rare glimpse into ancient river processes, inverted landscapes, and forgotten Victorian gold geology.

Inside Australia's Largest & Richest Gold Mine

Inside Australia's Largest & Richest Gold Mine

Australia’s richest gold mine isn’t built on classic quartz veins. This deep-dive into the Boddington Gold Mine explains how intrusion-hosted gold and copper formed, why Boddington produces more gold than any other mine in Australia, and how billions of dollars in metal were hidden beneath laterite in Western Australia. Discover the geology, mining history and economic significance of one of the world’s most unusual Archean gold deposits.

The New $11 Billion White Gold Rush in Australia

The New $11 Billion White Gold Rush in Australia

Lithium has become the world’s new white gold, and Australia is emerging as one of the most critical suppliers in the global battery metals race. In the Pilbara region of Western Australia, the Tabba Tabba lithium deposit is transforming from a forgotten tantalum field into a world-class hard rock lithium project with the potential to generate billions of dollars in value. This article explores how Tabba Tabba was discovered, why its lithium was overlooked for decades, how its unique geology concentrated spodumene-rich pegmatites, and what its development means for Australia’s role in the electric vehicle and energy transition boom.

The Largest Single Gold Deposit Ever Discovered: Muruntau

The Largest Single Gold Deposit Ever Discovered: Muruntau

Muruntau is the largest single gold deposit ever discovered on Earth, hidden beneath the Kyzylkum Desert of Uzbekistan. This article explores how a unique combination of tectonic collisions, deep crustal faults, high-temperature hydrothermal fluids, sulfur chemistry, and immense geological time focused more gold into one place than anywhere else on the planet. From its discovery through arsenic geochemical anomalies to its position within the South Tien Shan mountain belt, Muruntau stands as a once-in-Earth-history convergence of geological processes that pushed gold concentration to its natural limit.

An Ancient Volcanic Arc in Australia: The Pine Creek Orogen

An Ancient Volcanic Arc in Australia: The Pine Creek Orogen

Beneath the landscapes of the Northern Territory lies the eroded core of an ancient volcanic arc that once shaped the edge of Australia nearly two billion years ago. The Pine Creek Orogen preserves the deep roots of a Paleoproterozoic subduction system, where magma was generated, crust was deformed, and metal-rich fluids circulated through the Earth’s crust. Unlike modern volcanic arcs marked by active volcanoes, this system has been stripped down by immense geological time, exposing granites, metamorphosed sediments, and structural pathways that reveal how continental crust grows. This article explores how volcanic arcs form, why Australia preserves only their roots, where the Pine Creek Orogen is located, and how these deep processes led to the concentration of gold and uranium that made the region one of Australia’s most important mineral provinces.

The Search for a Massive Meteorite Impact With No Crater

The Search for a Massive Meteorite Impact With No Crater

Less than one million years ago, a massive meteorite impact struck Earth and scattered molten rock across multiple continents, creating the Australasian strewnfield — the largest known tektite field on the planet. Impact glass from this event has been found from Southeast Asia to Australia and Tasmania, proving beyond doubt that a large asteroid or meteorite collided with Earth around 788,000 years ago. Despite overwhelming physical, chemical, and geological evidence, the impact crater has never been conclusively identified. This article explores how tektites form, why the Australasian strewnfield confirms a single enormous meteorite impact, and how sea-level change, volcanism, erosion, and tectonics may have erased or hidden one of the largest recent impact craters on Earth.




OzGeology is now on Spotify!


We’re proud (and honestly still a bit stunned!) to announce that OzGeology is now available as a podcast on Spotify.

What started as a small YouTube channel exploring Australia's geology, gold discoveries, and natural history has grown into something much bigger — and it’s all thanks to you!

In an incredible moment we never saw coming, OzGeology has:

🏆 Ranked #1 Science Podcast in Australia

🌟 Achieved #8 Overall Top Podcast in Australia — across every category and genre

🎙️ Secured #1 Top Episode in Australia

It’s rare for a science-focused show to break into the top charts dominated by entertainment, news, and lifestyle podcasts — and the fact that a geology podcast has ranked this high shows just how passionate and curious this community really is.

This milestone means so much to us because it proves there’s a real hunger for stories about the ancient landscapes, goldfields, and hidden wonders that shaped Australia. It’s not just about rocks — it’s about history, discovery, and adventure.

If you love learning about the Earth beneath your feet, the secrets locked inside ancient mountains, or the thrill of finding gold, the OzGeology podcast is made for you.

🔎 Explore new episodes, uncover Australia's hidden geology, and join the growing OzGeology community on Spotify today!

Click here to listen to the OzGeology Podcast on Spotify!

Support The Channel

If you enjoy the videos and want to help keep the OzGeology channel going, consider supporting us on Patreon.
Creating high-quality geology content takes a huge amount of time, research, and fieldwork — and your support helps make it all possible.

While we don't offer extra perks or bonus content (because every spare moment already goes into making the videos you see), your support directly helps fund new episodes, equipment, and exploration trips. And all patrons' names are listed at the end of every episode as a thank you.

If you love what OzGeology is all about, and want to be part of the journey, we’d be honored to have you as a Patreon supporter.

👉 Join us on Patreon


Every bit of support truly makes a difference — thank you!


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