French chalk

French chalk --> talc

(Science: chemical) a soft mineral of a soapy feel and a greenish, whitish, or grayish colour, usually occurring in foliated masses. It is hydrous silicate of magnesia. Steatite, or soapstone, is a compact granular variety. Indurated talc, an impure, slaty talc, with a nearly compact texture, and greater hardness than common talc.

Synonym: talc slate.

Origin: f. Talc; cf. Sp. & It. Talco, LL. Talcus; all fr. Ar. Talq.

Retrieved from ""
First | Previous (French-american-british classification) | Next (French scale) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.