Simple categories matching argillaceous:

• sediment,
• rock,
• material,
• unit,
• deposit,

Members with property argillaceous:

• clay,
• mud_stone,
• pure_chemical,
• shale,
• gypsum,
• marl,
• sand,
• oxford_clay,
• slate,
• sepiolite,
• ball_clay,
• siltstone,
• saturated_clay,
• silty_shale,