The pyrite gemstone cabochons shown here are 6mm in diameter, and are available to be handcrafted into custom pieces for you.

The mineral pyrite (or iron pyrite) is an iron sulfide. This mineral’s metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool’s gold. Pyrite may tarnish with humidity. If you keep it in closed plastic bag, just like sterling silver, it will not tarnish.