Iron sulphide mineral pyrite has a metallic sheen and is composed primarily of this mineral. Because of the cubic crystal arrangement, it possesses an opaque transparency and a brittle feel. beautiful Pyrite Jewelry is regarded as being pure and stimulating the imagination. Due to the color’s brassy hue and resemblance to gold, fool’s gold is the name given to it. Fool’s gold is a highly well-liked crystal with strong ties to fire energy and abundance. This stone is known as a tool to ensure your protection.