We had four testers try out all of the different shades — Topaz, Quartz, and Moonstone — to see how it wore on their skin tone and skin type. Overall, we found that its creamy formula layered ...

Osmium, the heaviest of all known substances, has a high melting point and is harder than glass and quartz but is scratched by topaz. Its scarcity and its tendency to form the highly poisonous ...