Pakati pa tinthu ta mchere tomwe timapanga granite, opitilira 90% ndi feldspar ndi quartz, omwe feldspar ndiye ambiri. Feldspar nthawi zambiri imakhala yoyera, imvi, komanso yofiira ngati thupi, ndipo quartz nthawi zambiri imakhala yopanda mtundu kapena yoyera ngati imvi, yomwe imapanga mtundu woyambira wa granite. Feldspar ndi quartz ndi mchere wolimba, ndipo zimakhala zovuta kusuntha ndi mpeni wachitsulo. Ponena za mawanga akuda mu granite, makamaka mica yakuda, palinso mchere wina. Ngakhale kuti biotite ndi yofewa, kuthekera kwake kupirira kupsinjika sikofooka, ndipo nthawi yomweyo amakhala ndi granite yochepa, nthawi zambiri osakwana 10%. Uwu ndiye mkhalidwe wazinthu zomwe granite imakhala yolimba kwambiri.
Chifukwa china chomwe granite ilili yolimba ndichakuti tinthu ta mchere timene timakhala tomangirana bwino ndipo timalowa mkati mwa wina ndi mnzake. Ma pores nthawi zambiri amakhala osakwana 1% ya kuchuluka konse kwa miyala. Izi zimapatsa granite mphamvu yopirira kupsinjika kwamphamvu ndipo chinyezi sichilowa mosavuta.
Nthawi yotumizira: Meyi-08-2021