You searched for: “allophanes”
allophane (s) (noun), allophanes (pl)
An amorphous clay mineral having a variable composition of aluminum silicate, hydrated water, and traces of other minerals: in her book, Judy read about an allophane as being an amorphous, variously colored, hydrated aluminosilicate mineral.
This entry is located in the following units: allo-, all- (page 8) phanero-, phaner-, -phane, -phan, -phanic, -phanous,
-phany + (page 1)