This is bismuth — a natural chemical element that chemically resembles arsenic and antimony. But there’s a catch with this crystal. While bismuth occurs naturally in the Earth’s crust, the ...

When we talk about crystals around here, we’re generally talking about the quartz variety used to make oscillators more stable, or perhaps ruby crystals used to make a laser. We hardly ever talk ...

There are plenty of natural wonders in the world that are actually incredibly dangerous. The Blue Hole of Santa Rosa, for example, is an unassuming New Mexico lake that's actually a death trap ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure—have been found on Earth. They are formed of simple ...