hydrous silicate of magnesia
1Gymnite — Gym nite (j[i^]m n[imac]t), n. [Gr. gymno s naked. So called as coming from the Bare Hills, Maryland.] (Min.) A hydrous silicate of magnesia. [1913 Webster] …
2Indurated talc — Talc Talc, n. [F. talc; cf. Sp. & It. talco, LL. talcus; all fr. Ar. talq.] (Min.) A soft mineral of a soapy feel and a greenish, whitish, or grayish color, usually occurring in foliated masses. It is hydrous silicate of magnesia. {Steatite}, or… …
3Meerschaum — Meer schaum (m[=e]r sh[add]m; 277), n. [G., lit., sea foam; meer sea + schaum foam; but it perh. is a corruption of the Tartaric name myrsen. Cf. {Mere} a lake, and {Scum}.] 1. (Min.) A fine white claylike mineral, soft, and light enough when in… …
4Saponite — Sap o*nite, n. [Sw. saponit, fr. L. sapo, onis, soap.] (Min.) A hydrous silicate of magnesia and alumina. It occurs in soft, soapy, amorphous masses, filling veins in serpentine and cavities in trap rock. [1913 Webster] …
5sepiolite — Meerschaum Meer schaum (m[=e]r sh[add]m; 277), n. [G., lit., sea foam; meer sea + schaum foam; but it perh. is a corruption of the Tartaric name myrsen. Cf. {Mere} a lake, and {Scum}.] 1. (Min.) A fine white claylike mineral, soft, and light… …
6Serpentine — Ser pen*tine, n. [Cf. (for sense 1) F. serpentine, (for sense 2) serpentin.] 1. (Min.) A mineral or rock consisting chiefly of the hydrous silicate of magnesia. It is usually of an obscure green color, often with a spotted or mottled appearance… …
7soapstone — Talc Talc, n. [F. talc; cf. Sp. & It. talco, LL. talcus; all fr. Ar. talq.] (Min.) A soft mineral of a soapy feel and a greenish, whitish, or grayish color, usually occurring in foliated masses. It is hydrous silicate of magnesia. {Steatite}, or… …
8Steatite — Talc Talc, n. [F. talc; cf. Sp. & It. talco, LL. talcus; all fr. Ar. talq.] (Min.) A soft mineral of a soapy feel and a greenish, whitish, or grayish color, usually occurring in foliated masses. It is hydrous silicate of magnesia. {Steatite}, or… …
9Talc — Talc, n. [F. talc; cf. Sp. & It. talco, LL. talcus; all fr. Ar. talq.] (Min.) A soft mineral of a soapy feel and a greenish, whitish, or grayish color, usually occurring in foliated masses. It is hydrous silicate of magnesia. {Steatite}, or… …
10talc slate — Talc Talc, n. [F. talc; cf. Sp. & It. talco, LL. talcus; all fr. Ar. talq.] (Min.) A soft mineral of a soapy feel and a greenish, whitish, or grayish color, usually occurring in foliated masses. It is hydrous silicate of magnesia. {Steatite}, or… …