Icupa rya Germanium Wafer rya santimetero 2, rifite uburebure bwa mm 50.8, rifite kristale imwe 1SP 2SP.

Uduce twa Germanium dufite ubushobozi bwo gupima imiterere y’ibintu. Twagize uruhare runini mu iterambere rya fiziki ya state solid state na electronics za state solid state. Germanium ifite ubucucike bwa 5.32g/cm3, germanium ishobora gushyirwa mu cyiciro cy’icyuma gito gitatanye, germanium chemical stability, ntikorana n’umwuka cyangwa umwuka w’amazi ku bushyuhe bw’icyumba, ariko kuri dogere 600 ~ 700℃, germanium dioxide ikorwa vuba. Ntikorana na aside hydrochloric, igabanya aside sulfuric. Iyo aside sulfuric yikubise cyane ishyushye, germanium irashonga buhoro buhoro. Muri aside nitrique na aqua regia, germanium irashonga byoroshye. Ingaruka z’umuti wa alkali kuri germanium ni nke cyane, ariko alkali ishongeshejwe mu kirere ishobora gutuma germanium ishonga vuba. Germanium ntikorana na karuboni, bityo ishongeshwa mu cyuma cya grafiti kandi ntizanduzwa na karuboni. Germanium ifite ubushobozi bwiza bwo gupima imiterere y’ibintu, nko kugenda kwa electron, kugenda mu mwobo n'ibindi. Iterambere rya germanium riracyafite ubushobozi bwinshi.