saponite

saponite is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A hydrous silicate of magnesia and aluminia. It occurs in soft, soapy, amorphous masses, filling veins in serpentine and cavities in trap rock.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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