Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems often look fairly ordinary–like rocks. It's only when they are cut and polished that they obtain the ...

Most people know some very basic information about minerals, crystals, and gemstones, but likely wouldn ... often hiding among normal rocks, they are looked at very differently.

We set out to test exactly what we could resolve in terms of fluid access to the matrix of these rocks and we were amazed at the extremely limited volume involved. But what was most amazing to us was ...

An "amazing" new type of mineral has been discovered by scientists analysing a rock mined in Cornwall about ... For centuries, mineralogists believed the green crystals to be a variation of ...