21 Amazing Rocks You Won't Believe Actually Exist in the Wild
While bismuth crystals can easily be found online, the watermelon tourmaline" - a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium - is definitely something you don't see everyday. Supposedly, this is a rare variety that di
The Science of Earthquakes and Fracking | Daily Infographic
The science of earthquakes is both fascinating and complicated, even in this over-simplified version.