Saponite
Saponite , noun
[Swedish saponit, from Latin sapo, -onis, soap.]
(Mineralogy) A hydrous silicate of magnesia and alumina. It occurs in soft, soapy, amorphous masses, filling veins in serpentine and cavities in trap rock.
Saponite , noun
[Swedish saponit, from Latin sapo, -onis, soap.]