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方法与步骤云母的结晶构造属于层状构造,其晶体成假六方柱状、板状、鳞片状或叶片状等.{001}解理极发育,沿解理易被剥成薄片;薄片能弯曲,具弹性.与云母伴生的矿物(如石英、长石、角闪石、辉石及某些副矿物磷灰石、磁铁矿、锆石、榍石、金红石等)多数为粒状、柱粒状的脆性矿物.造岩矿物粒度一般0.1毫米以上,副矿物一般小于0.05毫米.造岩矿物常与黑云母成连晶,而副矿物常常包裹在黑云母之中.这就给黑云母提纯带来了很大困难.
Methods and Procedures The crystalline structure of mica belongs to the layered structure, and its crystals are pseudo-hexagonal columnar, plate-like, scaly or leaf-like, etc. {001} The cleavage pole develops easily and is easily flaked along the cleavage; the sheet can be bent and has elasticity Mica - associated minerals such as quartz, feldspar, hornblende, pyroxene and some accessory minerals such as apatite, magnetite, zircon, limonite and rutile are mostly granular and granular brittle minerals Rock-forming minerals generally have a particle size of 0.1 mm or more and sub-minerals generally less than 0.05 mm. Rock-forming minerals are often associated with biotite, while accessory minerals are often entrapped in the biotite, which gives the biotite a great deal of purification difficult.