Dictionary

websterite en · NOUN

Pronunciation

• /ˈwɛbstəɹaɪt/

Etymology

From Webster + -ite, after geologist Thomas Webster (1772–1844).

Meanings

1. (countable, uncountable) A hydrous aluminium sulfate mineral with formula Al₂SO₄(OH)₄·7(H₂O).
   • Fig. 6 is the interesting spectrum of the bright blue compound of alumina. These three bands, although generally faint, are narrow and well defined, the blue and green spaces being invariably clear. Websterite and cryolite show this spectrum to great advantage. 1873, Charles Horner, “On the Spectra of Some Cobalt Compounds in Blowpipe Chemistry”, in Chemical News and Journal of Industrial Science, page 242:
   • On Websterite found in the Plastic Clay of Auteuil, near Paris [article title] 1828 August 14, Alexandre Brongniart, edited by Richard Taylor and Richard Phillips, The Philosophical Magazine, volume IV, London: Richard Taylor, page 81:
   • Among some specimens of eruptive rocks obtained from Gallatin, Jefferson and Madison Counties, Montana, Merrill finds basalts, andesites, lamprophyres, syenites, porphyrites, wehrlites, harzburgites and websterites, some of which possess peculiar characteristics. 1896 February 14, “Eruptive Rocks from Montana”, in The American Naturalist, volume XXX, number III, page 128:

Forms

Synonyms

alley stone · aluminite