Words to Describe pyritous

Things pyritous often describes ("pyritous ________")

• deposits
• nodules
• coal
• beds
• quartz
• masses
• veins
• material
• concentrates
• copper
• ore
• clay
• shale
• schists
• limestone
• ores
• kind
• rock
• vein
• impregnations
• concretions
• bands
• formation
• rocks
• slates
• schist
• quartzite
• minerals
• lode
• character
• shales
• clays
• casts
• matter
• iron
• marls
• slate