Feldspars yog dav dav vim qhov kub, siab, thiab cov ntsiab lus hauv cov magmas thiab melts nyiam lawv tsim. Feldspars yog cov zaub mov tectosilicate, nrog cov qauv uas tso cai rau kev suav nrog ntau yam.
Dab tsi yog cov ntxhia tshaj plaws?
Quartz yog peb cov ntxhia tshaj plaws. Quartz yog tsim los ntawm ob qho tshuaj lom neeg ntau tshaj plaws hauv ntiaj teb: oxygen thiab silicon.
Vim li cas feldspar tseem ceeb?
Feldspars yog siv los ua cov tshuaj fluxing los tsim ib theem iav ntawm qhov kub thiab txias thiab ua ib qho chaw ntawm alkalies thiab alumina hauv glazes. Lawv txhim kho lub zog, toughness, thiab durability ntawm lub cev ceramic, thiab cement lub crystalline theem ntawm lwm cov khoom xyaw, softening, melting thiab wetting lwm batch constituents.
Dab tsi yog pawg pob zeb ntau tshaj plaws hauv ntiaj teb yog vim li cas?
Qhov kwv yees li 1,000 silicate minerals ua ntau dua 90% ntawm lub ntiaj teb crust. Silicates yog nyob deb ntawm pawg pob zeb loj tshaj plaws. Feldspar thiab quartz yog ob qho tib si silicate minerals.
Puas yog feldspar ib qho ntxhia?
Cov tswv cuab feem ntau ntawm pawg feldspar yog plagioclase (sodium-calcium) feldsparsthiab alkali (potassium-sodium) feldspars. Feldspars tsim txog li 60% ntawm lub ntiaj teb crust, thiab 41% ntawm lub ntiaj teb continental crust los ntawm qhov hnyav.
