argyrodite: a rare steel-grey mineral consisting of silver and germanium and sulfur
mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition
gastrocybe lateritia: a species of Gastrocybe fungus that has a conic cap and a thin stalk; at first the stalk is upright but as it matures the stalk bends over and then downward; the cap then gelatinizes and a slimy mass containing the spores falls to the ground as the stalk collapses