#clay-like

• Argilliform — Having the shape, appearance, or physical properties of clay; mineral masses or fine sedimentary deposits featuring a plastic, compact, and colloidal structure resembling clay. In a geological sense, it describes materials resulting from the profound weathering of silicates, capable of becoming malleable in the presence of water and maintaining their shape upon drying according to standard textural parameters.
• Argilloid — Having the appearance, texture, or colloidal properties of clay without being a pure clay from a mineralogical standpoint; a synthetic or natural material or aggregate that mimics the plastic structure of clay. In a geological sense, it describes partially weathered minerals or silicates that have developed a fine consistency and a temporary capacity for reversible hydration resembling clay.