So far, most of the minerals found on Mars tell a story of lava poured out by ancient volcanoes, followed by long stretches in which water trickled through and slowly reshaped the rock. However, some ...

A surprising discovery by NASA’s Perseverance rover has revealed corundum in rocks on the Martian surface. NASA’s ...

This trip starts with a long drive to North Carolina and a simple goal: find ruby and sapphire corundum crystals at Propst Farm. The site is an alluvial deposit, meaning the crystals have eroded out ...

NASA’s Perseverance rover has uncovered gemstone-like minerals on Mars, revealing unexpected clues about ancient water, geological activity and potentially habitable environments.

Corundum on Mars: NASA's Perseverance rover detected the gemstone-forming mineral for the first time in any Martian context, ...

When NASA's Perseverance rover used its laser to tease apart some pale rocks lying around in Jezero Crater in 2025, scientists did not expect anything out of the ordinary.

・Birthstones from January to April. In Part 2, I will introduce the birthstones from May to August. This includes the June alexandrite that I wear myself every day. Emerald is a gemstone characterized ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

For generations, people have been captivated by the beauty, uniqueness, durability and symbolic importance of gemstones. They are utilised in jewellery, spiritual pursuits and astrology and are also ...

When studying for the Gemological Certification, I realize the importance of learning not just gemology, but also connecting it with mineralogy. Today, with ruby and sapphire as our theme, I would ...

The birthstone for July is the ruby. The good news is that rubies are beautiful. The bad news is that they'll cost you a bundle. The finest rubies can sell for more per carat than comparable diamonds.