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

Why Ballarat Has So Many Sinkholes

Why Ballarat Has So Many Sinkholes

Mysterious holes are opening across the streets, backyards, and parks of Ballarat, a city once defined by its gold rush past. These aren’t just surface-level potholes—they’re deep, dangerous collapses revealing a vast, forgotten network of underground mine shafts dug over a century ago. In this article, we uncover how 19th-century gold mining has come back to haunt Ballarat in the form of modern sinkholes. Beneath the surface lies a hollow, crumbling legacy of quartz reef tunnels, deep leads, and abandoned shafts, many of which are now collapsing beneath unsuspecting residents. This is the story of a city slowly sinking into its own history.

A Geological Wonder in Tasmania: Devils Kitchen

A Geological Wonder in Tasmania: Devils Kitchen

Devil’s Kitchen is one of Tasmania’s most striking geological landmarks — a towering sea-carved chasm formed by millions of years of relentless erosion. This post explores the geological history of Devil’s Kitchen, from its origins in Permian-age siltstone to the collapse of a sea cave that gave rise to the dramatic trench visible today. With clear evidence of horizontal sedimentary layering and vertical joints exploited by wave action, Devil’s Kitchen stands as a testament to Earth’s slow but unstoppable sculpting forces. Discover how this natural wonder was formed, why it's geologically significant, and what it reveals about Tasmania's coastal evolution.

New Asteroid Crater Just Discovered Under The Sea: The Silverpit Crater

New Asteroid Crater Just Discovered Under The Sea: The Silverpit Crater

Beneath the calm waters of the North Sea lies a dramatic secret from Earth’s past. The Silverpit Crater, recently confirmed as an asteroid impact site, was formed more than 43 million years ago when a space rock slammed into the seabed. Long debated as either an impact crater or a collapsed salt dome, new evidence of shock-deformed minerals and advanced seismic imaging has finally revealed its extraterrestrial origin. This discovery not only rewrites part of Europe’s geological history but also highlights the very real influence asteroid impacts have had on shaping our planet.

The Worst Gold Mining Disaster in Australian History: The New Australasian Deep Lead No. 2

The Worst Gold Mining Disaster in Australian History: The New Australasian Deep Lead No. 2

The Creswick mine disaster of 1882 remains Australia’s worst gold mining tragedy. When floodwaters burst into the New Australasian No. 2 shaft, twenty-two miners were lost. This story explores the desperate rescue efforts, the grief that swept Creswick, and the legacy of one of Victoria’s richest yet deadliest deep leads.

Hidden Geology of Australia: Paroo-Darling Mound Springs, Tasman Abyssal Plain and the Woodleigh Impact Crater

Hidden Geology of Australia: Paroo-Darling Mound Springs, Tasman Abyssal Plain and the Woodleigh Impact Crater

Australia hides some of its most extraordinary geological wonders far from the tourist trail. From the rare artesian mound springs of the Paroo-Darling, to the vast Tasman Abyssal Plain beneath the sea, and the buried Woodleigh Impact Structure carved by a colossal meteor, these sites reveal the hidden forces that shaped the continent. They are the lesser-known but no less spectacular stories of water, tectonics and cosmic collisions that continue to define Australia’s deep past.

The Mega Tsunami That Hit Eastern Australia: Lord Howe

The Mega Tsunami That Hit Eastern Australia: Lord Howe

Eastern Australia has a hidden history of colossal mega tsunamis that reshaped the coast and left behind dramatic geological evidence. On Lord Howe Island, towering waves more than 100 meters high ripped vegetation away, hurled massive boulders inland, and capped headlands with layers of sand and shells from the ocean floor. These events were unlike any ordinary storm or cyclone, leaving behind scars carved into cliffs and stories that echo through Aboriginal oral traditions. This post explores the science, history, and mystery of the mega tsunamis that struck the Tasman Sea and eastern Australia.

Australia’s Remote Billion-Dollar Gold Mine: The Tanami Gold Mine

Australia’s Remote Billion-Dollar Gold Mine: The Tanami Gold Mine

The Tanami Gold Mine is one of Australia’s most significant and remote gold producers. Located deep in the Northern Territory desert, it has delivered more than twelve million ounces of gold since the 1980s and continues to generate billions in revenue each year. Its unique geology, long mine life and ambitious expansion projects make it a cornerstone of the Northern Territory’s mining industry and one of Newmont’s flagship global assets.

Queensland Was Once Connected To Canada: The Georgetown Inlier

Queensland Was Once Connected To Canada: The Georgetown Inlier

Beneath the quiet town of Georgetown in north Queensland lies a geological secret: a fragment of Canada. Known as the Georgetown Inlier, this ancient block of crust began its life as part of Laurentia, the heart of North America, before drifting away and colliding with Australia 1.6 billion years ago. Its rocks preserve the isotopic fingerprints of Canada’s Wernecke Supergroup, offering a rare glimpse into the assembly of Earth’s early supercontinents.

Australia’s Most Important Mineral Deposit: Mount Weld

Australia’s Most Important Mineral Deposit: Mount Weld

Mount Weld in Western Australia is one of the world’s richest rare earth deposits. Its unique geology and immense strategic value make it Australia’s most important mineral treasure.

One of the Richest Gold Copper Discoveries in Australian History: Ernest Henry

One of the Richest Gold Copper Discoveries in Australian History: Ernest Henry

The Ernest Henry Mine in Queensland is one of Australia’s richest copper-gold discoveries. Hidden beneath barren ground until 1991, this world-class deposit has since produced billions of dollars in copper and gold, shaping both local communities and the nation’s mining legacy.

The Devastating 2025 Afghanistan Earthquake: A Geological Analysis

The Devastating 2025 Afghanistan Earthquake: A Geological Analysis

A magnitude 6.0 earthquake struck eastern Afghanistan late on August 31, 2025, tearing through narrow valleys in Kunar Province and leaving more than 1,400 people dead and over 3,000 injured. Entire villages built of adobe and field stone collapsed within seconds, while rain-loosened slopes gave way in chains of landslides that severed roads and isolated survivors. What turned a moderate-sized quake into a national disaster was not just where it hit, but how the crust moved beneath it.

Australian Pink Salt Versus Himalayan Mountain Salt

Australian Pink Salt Versus Himalayan Mountain Salt

Australia is home to its own remarkable pink salt, harvested each year from the Murray–Darling Basin. While Himalayan salt gets most of the attention, Murray River Salt tells a very different story. Drawn from ancient saline aquifers and crystallised under the hot Australian sun, these delicate pink flakes are not only prized in kitchens for their light texture and balanced flavour, but also play a vital role in tackling salinity across the Murray River system.




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!


Translation missing: en.general.search.loading