I-Mica yigama elijwayelekile lamaminerali eqembu le-mica. Iyi-aluminosilicate ye-potassium, i-aluminium, i-magnesium, i-iron, i-lithium nezinye izinsimbi, zonke ezibekwe ngezingqimba futhi zi-monoclinic. I-crystal iyi-pseudohexagonal lamellae noma efana ne-plate, ngezinye izikhathi i-columnar. Ukuqhekeka kwe-lamellar kuphelele kakhulu, kune-glass luster kanye ne-elastic sheet. Inkomba yokubuyisa ye-mica iyanda ngokwanda kokuqukethwe kwensimbi, kusukela ekuveleni okuphansi kuya ekuveleni okuphakathi. Uhlobo olungenayo insimbi alunambala ku-flake. Uma okuqukethwe kwensimbi kuphakeme, kulapho umbala uba mnyama khona, futhi kuba ne-polychromatic futhi kuncela kakhulu.

Usayizi we-Mica flake: 6-10mesh, 10-20mesh,
Impuphu ye-Mica: 200mesh, 325mesh, 600mesh, 800mesh, 1250mesh, 2000mesh, 3000mesh kanye ne-5000mesh.

Isicelo
Embonini, i-biotite isebenzisa kakhulu ukuvikela kwayo ukushisa, kanye nokumelana ne-asidi, ukumelana ne-alkali, ukumelana nokucindezelwa kanye nokumelana nokuxebuka, njengezinto zokuvikela imishini kagesi kanye nemishini kagesi; okwesibili, isetshenziselwa ukukhiqiza amafasitela nezingxenye zemishini zama-steam boilers kanye nezitofu zokuncibilikisa. Ama-Mica chips kanye ne-mica powder kungacutshungulwa kube yiphepha le-mica, futhi kungaphinde kuthathe indawo yeshidi le-mica ukuze kukhiqizwe izinto ezahlukahlukene zokuvikela ukushisa ezingabizi kakhulu nezifanayo.