دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a type of mica that is high in magnesium and dark in colour.

n: unit of conductivity. Compare ohm. mica n: a silicate mineral characterised by sheet cleavage;i.e.. it separates into thin sheets. Biotite is ferromagnesian black mica. and muscovite is potassic white mica. Sometimes mica is used as a lost circulation material in drilling.