In 2015, a man named David Hole was out with a metal detector in Maryborough Regional Park, near Melbourne, Australia, in the heart of a region made famous by the 19th-century gold rush. Buried in the yellow clay, he found a heavy, reddish rock. Convinced there was a gold nugget inside, he took it home and spent years trying to get it open. It never broke. When he finally took it to experts, they told him it was worth far more than gold, though not in the way he’d hoped.
The story, reported by scientists at Museums Victoria, has become one of the most shared rock stories ever told, and with good reason.
Years of trying to crack it
The rock was unusually heavy for its size. Hole tried a rock saw, an angle grinder and a drill. He soaked it in acid. He even hit it with a sledgehammer. Nothing made a dent. For years it sat in his home, an unopened puzzle.
Eventually, curiosity won. Years after the find, he brought it to the Melbourne Museum to have it identified.
What the experts found
Geologists Dermot Henry and Bill Birch took one look and knew it was something special. Henry later said that in decades at the museum, examining thousands of rocks people believed were meteorites, only two had turned out to be real. This was one of them.
They cut a thin slice with a diamond saw. Inside, the rock was full of iron and tiny crystallized droplets of metallic minerals called chondrules. It was a meteorite: an H5 ordinary chondrite weighing about 17 kilograms, or 37.5 pounds, and roughly 4.6 billion years old, formed in the earliest days of the solar system. The scientists believe it probably came from the asteroid belt between Mars and Jupiter.
That high iron content is exactly why it was so heavy, and why no hammer or saw could get through it.
Why it’s worth more than gold
Gold nuggets turn up regularly in that part of Victoria. Meteorites do not: the Maryborough meteorite is one of only a handful ever recorded in the state, and one of the largest. Its value lies in what it can teach about the formation of the planets, the composition of the early solar system and the asteroids that still pass near Earth. For scientists, that is a treasure no nugget could match.
How to tell if your rock could be one
Meteorites are usually much heavier than an ordinary rock of the same size, often attract a magnet, and may have a dark, thin outer crust from burning through the atmosphere. Most suspected meteorites turn out to be iron-rich earth rocks or slag, but many natural history museums and universities will look at a candidate.
Not every forgotten object is junk. Sometimes it’s real gold hiding in an old appliance, and sometimes it’s a piece of the early solar system sitting on a shelf.
He hoped for gold and found something 4.6 billion years old. That’s the trick.
