Elemental bismuth may occur naturally, but this type of staircase crystal is usually made in a lab. Bismuth, a brittle metal with a silvery-white color, is found in the earth’s crust.

Jewelry can be very beautiful and add elegance to just about ... It will be interesting to see what types of applications this new type of crystal will have both in the area of jewelry and for ...

A close-up photo taken by the Curiosity rover shows pure yellow sulfur crystals within a rock ... The presence of sulfates, a type of salt that contains sulfur, is common in the area Curiosity ...