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MICA - CRYSTAL STRUCTURE






Mica is a monoclinic mineral containing a octahedral complex aluminum layer sandwitched in two tetrahedral SiO-layers.
Crystals are combined by kalium ions under coordinate bonding and piled up in many layers.
Mica can be easily split into due to a weak bonding force of kalium ions.
A minimum unit layer is composed of crystals with sandwitched structure and kalium ions at either one side and its thickness approximately 1nm (1nm=1 nanometer)
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