a complex hydrous silicate of aluminum and magnesium, a light-colored, soft clay mineral, often found in veins and cavities in serpentine and basaltic rocks
Origin of saponiteSwedish saponit from Classical Latin sapo: see saponify and -ite
A clay mineral that is a hydrous silicate of aluminum and magnesium and occurs in soft amorphous masses in the cavities of certain rocks.
Origin of saponiteLatin sāpō sāpōn- hair dye ; see saponin . -ite 1