Pyrite, or iron pyrites, is an iron sulphide. This mineral’s metallic lustre and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool’s gold. Approximate sizes: Extra Small – 200g-400g, Small – 401g-600g, Large – 801g-1000g, Extra Large – 1001g-2000g Exact size may vary as they are graded on weight.
