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samarskite मीनिंग इन हिंदी
samarskite उदाहरण वाक्य
उदाहरण वाक्य
अधिक: आगे- Samarskite occurs in rare earth bearing granite pegmatites with other rare minerals.
- Other minerals include samarskite and fergusonite.
- Samarskite was first described in 1847 for an occurrence in Miass, Ilmen Mountains, Southern Ural Mountains of Russia.
- Samarskite crystallizes in the orthorhombic-dipyramidal class as black to yellowish brown stubby prisms although it is typically found as anhedral masses.
- Samarium was discovered in 1879 by the French chemist Paul �mile Lecoq de Boisbaudran and named after the mineral samarskite from which it was isolated.
- Boisbaudran named his element " samaria " after the mineral samarskite, which in turn honored Vasili Samarsky-Bykhovets ( 1803 1870 ).
- The samaria earth was further separated by Lecoq de Boisbaudran in 1886 and a similar result was obtained by Jean Charles Galissard de Marignac by direct isolation from samarskite.
- Well-known minerals containing yttrium include gadolinite, xenotime, samarskite, euxenite, fergusonite, yttrotantalite, yttrotungstite, yttrofluorite ( a variety of fluorite ), thalenite, yttrialite.
- These were gadolinium ( found in gadolinite, named after the Finnish chemist Johan Gadolin ) and samarium ( the mineral samarskite was named after a Russian mining engineer, Vasili Samarsky-Bykhovets ).
- Samarium occurs with concentration up to 2.8 % in several minerals including cerite, gadolinite, samarskite, monazite and bastn�site, the last two being the most common commercial sources of the element.
परिभाषा
संज्ञा.- a complex black mineral occurring in pegmatites