saponite

(-nīt′)

noun

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: Swed saponit < L sapo: see saponify & -ite

See saponite in American Heritage Dictionary 4

noun
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:

Origin: Latin sāpō, sāpōn-, hair dye; see saponin

Origin: + -ite1

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