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 ...

Let’s explore the deadliest crystals, minerals, and gemstones that, despite their dazzling appearances, pack a dangerous punch. 1. Arsenopyrite At first glance, arsenopyrite looks like a shiny ...

The Museum holds a vast collection of rocks, minerals, meteorites and ores. Explore 500,000 rocks, gems and minerals, including 5,000 meteorites. Find out how you can use the mineralogy collections as ...

Thus, when looking for jewelry with a precious gem component, buyers today have a lot to think about. Do you want a mined gem with its potential baggage of environmental and humanitarian abuse, or can ...