gilbertiteとは 意味・読み方・使い方

名詞

gilbertite (uncountable)

1. (mineralogy) A particular kind of muscovite.
   • 1836, Thomas Thomson, Outlines of Mineralogy, Geology, and Mineral Analysis‎^[1], page 235:

     The mass of gilbertite in the specimens in my possession, is mixed with dark purple fluor spar, and with specks of another mineral, which has the aspect of apatite.

   • 1905, Frederick William Rudler, A Handbook to a Collection of the Minerals of the British Islands‎^[2], page 27:

     A yellowish or greenish micaceous mineral, observed originally at Stenna Gwynn and since found in several china-stone districts in Cornwall, as at St. Austell and Breage, has been distinguished by the name of Gilbertite — a name given by Dr. Thomas Thomson, in compliment to Davies Gilbert, the "Cornish philospher," who was, at one time President of the Royal Society (b. 1767, d. 1839.)

   • 2012, Robert W. Boyle, Gold: History and Genesis of Deposits‎^[3], page 108:

     […] contemporaneous with gold are gilbertite, leptochlorite, tourmaline, iron sulphides, feldspar, (rare) carbonates, and quartz; post gold minerals are quartz, zinc and lead sulphides, and many others of geophases K and L.