Category Nuances for pyrrhotite:

• ferromagnetic,
• corrosive,
• metallic,
• primary,
• magnetic,
• deleterious,
• conductive,
• reactive,
• sensitive,
• refractory,
• iron,
• common,
• ferrous,
• opaque,

Simple Categories for pyrrhotite:

• mineral,
• solid,
• rock,
• material,
• particle,