Mica diorite(Min.), an eruptive rock allied to diorite but containing mica (biotite) instead of hornblende.Mica powder, a kind of dynamite containing fine scales of mica.Mica schist, Mica slate(Geol.), a schistose rock, consisting of mica and quartz with, usually, some feldspar.

(Mi*ca`ce*o-cal*ca"re*ous) a. (Geol.) Partaking of the nature of, or consisting of, mica and lime; — applied to a mica schist containing carbonate of lime.

(Mi*ca"ceous) a. [Cf. F. micacé.] Pertaining to, or containing, mica; splitting into laminæ or leaves like mica.

(Mice) n., pl of Mouse.

(||Mi*cel"la) n.; pl. Micellæ [NL., dim. of L. mica a morsel, grain.] (Biol.) A theoretical aggregation of molecules constituting a structural particle of protoplasm, capable of increase or diminution without change in chemical nature.

(Mich, Miche) v. i. [OE. michen; cf. OE. muchier, mucier, to conceal, F. musser, and OHG. muhhen to waylay. Cf. Micher, Curmudgeon, Muset.] To lie hid; to skulk; to act, or carry one's self, sneakingly. [Obs. or Colloq.] [Written also meach and meech.] Spenser.

(Mich"ael*mas) n. [Michael + mass religious service; OE. Mighelmesse.] The feast of the archangel Michael, a church festival, celebrated on the 29th of September. Hence, colloquially, autumn.

Michaelmas daisy. (Bot.) See under Daisy.

(Mich"er) n. [OE. michare, muchare. See Mich.] One who skulks, or keeps out of sight; hence, a truant; an idler; a thief, etc. [Obs.] Shak.

(Mich"er*y) n. Theft; cheating. [Obs.] Gower.

(Mich"ing), a. Hiding; skulking; cowardly. [Colloq.] [Written also meaching and meeching.]

(Mic"kle) a. [OE. mikel, muchel, mochel, mukel, AS. micel, mycel; akin to OS. mikil, OHG. mihil, mihhil, Icel. mikill, mykill, Goth. mikils, L. magnus, Gr. me`gas, gen. mega`loy; cf. Skr. mahat. &radic103. Cf. Much, Muckle, Magnitude.] Much; great. [Written also muckle and mockle.] [Old Eng. & Scot.] "A man of mickle might." Spenser.

(Mic"macs) n. pl.; sing. Micmac (Ethnol.) A tribe of Indians inhabiting Nova Scotia and New Brunswick. [Written also Mikmaks.]

(Mi"co) n. [Sp. or Pg. mico.] (Zoöl.) A small South American monkey (Mico melanurus), allied to the marmoset. The name was originally applied to an albino variety.

(Mi`cra*cous"tic) a. Same as Microustic.

elastic. They differ widely in composition, and vary in color from pale brown or yellow to green or black. The transparent forms are used in lanterns, the doors of stoves, etc., being popularly called isinglass. Formerly called also cat-silver, and glimmer.

The important species of the mica group are: muscovite, common or potash mica, pale brown or green, often silvery, including damourite (also called hydromica); biotite, iron-magnesia mica, dark brown, green, or black; lepidomelane, iron, mica, black; phlogopite, magnesia mica, colorless, yellow, brown; lepidolite, lithia mica, rose- red, lilac.

Mica (usually muscovite, also biotite) is an essential constituent of granite, gneiss, and mica slate; biotite is common in many eruptive rocks; phlogopite in crystalline limestone and serpentine.

  By PanEris using Melati.

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