Cov morphology thiab cov khoom siv lub cev ntawm cov kob silicate minerals yog txawv vim muaj cov qauv sib txawv ntawm silica caj qaum. Hauv kob silicates nrog cov tetrahedrons sib cais, vim qhov sib npaug ntawm qhov sib xyaw ntawm cov silicon-oxygen tetrahedron, cov khoom siv pob zeb hauv av muaj qhov nruab nrab ntawm cov duab, nrog lub birefringence tsawg, tsis muaj zog pleochroism thiab nqus tau, thiab feem ntau muaj Nruab Nrab kom tsis tiav multidirectional cleavage. Tsis tas li ntawd xwb, vim muaj lub siab ntawm cov atoms hauv cov qauv, nws muaj cov yam ntxwv ntawm lub siab hardness, siab lub zog nqus thiab siab refractive index. Qhov xwm txheej ntawm bitetrahedral kob silicate minerals yog tsis zoo tib yam. Cov duab ntawm cov siv lead ua nyhav elongated. Lub hardness thiab refractive index ntawm cov ntxhia muaj me ntsis qis dua, thiab qhia qhov txawv me ntsis loj. Lub birefringence, pleochroism thiab kev nqus yog txhua yam txhim kho. Lub hardness, tshwj xeeb nqus thiab refractive index ntawm kob silicate minerals muaj dej los yog nrog anion ntxiv yog txo. Silicate cov ntxhia nrog cov qauv cyclic yog feem ntau trigonal, hexagonal, tetragonal phaj zoo li thiab columnar muaju, uas cuam tshuam txog kev sib xyaw ntawm lub nplhaib nws tus kheej hauv cov qauv siv lead ua.
Tsis tas li ntawd, txawm hais tias cov nplhaib lawv tus kheej muaj trigonal, hexagonal, lossis tetragonal symmetry, lawv cov duab sib tshooj feem ntau txo vim muaj ntau txoj kev sib txuas lawv txuas nrog cov hlau cation hauv cov qauv siv lead ua, thiab lawv nyob hauv orthogonal (orthogonal), monoclinic lossis triclinic kev lag luam siv lead ua. Tab sis cov duab nws tseem niaj hnub nthuav qhia cov lus tsis tseeb ntawm peb-tog, cuav rau-tog lossis cuav plaub-lub tog neeg. Cov atomic packing ntom, qhov tshwj xeeb sib txawv, lub zog tawv, thiab qhov ntsuas qhov tsis txaus ntseeg ntawm cyclic silicate cov zaub mov feem ntau qis dua me ntsis ntawm cov ntawm cov kab lis kev cai kob silicate. Tsis tas li, anisotropy ntawm lub nplhaib nws tus kheej ua rau lub anisotropy ntawm morphology thiab lub cev lub zog ntawm lub nplhaib puab zoo li silicate ntxhia, uas yog me ntsis ntau dua li ntawm cov kob-hloov silicate ntxhia, tab sis yog siab dua li ntawm cov saw thiab fawm kib qauv. Cov ntxhia lim dej muaj ntau me me.