Thanks to its similarity to gold, the markasite or pyrite is also called "cat gold". The metallic shining stone is often used as a trimmings for the collection of other jewellery stones.

MARCASITE
Colour: brass yellow, gray yellow
Mohs hardness: 6.0x6.5
Density: 5.0-5.2
Transparency: opaque
Fracture: manyelig, uneven, brittle