siliceous earth


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siliceous earth

[sə′lish·əs ′ərth]
(geology)
A loose, friable, soft, porous, lightweight, fine-grained, and usually white siliceous sediment, usually derived from the remains of organisms.
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Siliceous earth (X-239, BET surface area 17.087 [m.sup.2]/g, was modified by 6/s[3-(triethoxysilyl) propyl] tetrasulfide(Si69), 2 wt%) were provided by Wantar Minerals Products Co, Ltd (Fujian, China).
Created from dead sea mud, lavender, and siliceous earth, this scrub is rich in minerals which will nourish and feed the skin.
Founded in 1903, Hoffmann's businesses are mining, refining and world-wide distribution of Neuburg Siliceous Earth (a natural combination of corpuscular silica and lamellar kaolinite).