Gemstones, be it precious or semi-precious, can be confusing. There are natural gems which are mined and then there are some which are grown in labs. But how to recognise if a stone is real or fake?

Tucked away in Gemini are custom AI experts you’re probably not using.

Both AI tools are similar, but it depends on what you really need.

Memoket Gem is an 11-gram AI wristband that records up to 20 hours of conversation and auto-generates summaries - but ships ...

At the recent Lunar and Planetary Science Conference, researchers presented evidence from NASA’s Perseverance rover that ...

This contribution is part of the special series of Inaugural Articles by members of the National Academy of Sciences elected in 2014. This paper reviews carbon fluxes into and out of subduction zones, ...

Gabasch et al. (2008) performed experiments using X-ray photoelectron spectroscopy (XPS) to analyze the thickness and composition of the coating on color-coated pink topaz. The study revealed that the ...

In response, GIA’s Bangkok lab performed FTIR spectroscopy on 38 untreated natural basalt-related yellow sapphires (figure 1). Twenty-two of the samples were from the Anakie Gem Fields area in ...