ATTENTION may be directed to Bulletin No. 666 of the United States Geological Survey, recently issued, entitled “Our Mineral Supplies,” which gives a brief account of the mineral resources of ...
Mineralogy is the study of minerals, the building blocks of rocks, which are naturally-occurring, crystalline solids with a set chemical make-up. This includes the study of the chemical ...
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 ...