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mica

Comprehensive Analysis

1) "Mica" -- As to mica mi·ca Pronunciation: 'mI-k& Function: noun Etymology: New Latin, from Latin, grain, crumb; perhaps akin to Greek mikros small : any of various colored or transparent mineral silicates crystallizing in monoclinic forms that readily separate into very thin leaves - mi·ca·ceous /mI-'kA-sh&s/ adjective Pronunciation Symbols Rock with mica Mica sheet Mica flakes The mica group of sheet silicate minerals includes several closely related materials having highly perfect basal cleavage. All are monoclinic with a tendency towards pseudo-hexagonal crystals and are similar in chemical composition. The highly perfect cleavage, which is the most prominent characteristic of mica, is explained by the hexagonal sheet-like arrangement of its atoms. The word "mica" is thought to be derived from the Latin word micare, meaning to shine, in reference to the brilliant appearance of this mineral (especially when in small scales). 1 Mica classification 1.1 Di-octahedral micas 1.2 Tri-octahedral micas 1.3 Interlayer deficient micas 2 Occurrence 3 Properties and uses 4 Mica in ancient times 5 References Chemically micas can be given the general formula:[1] X2Y4-6Z8O20(OH,F)4 in which X is K, Na, or Ca or less commonly Ba, Rb, or Cs Y is Al, Mg or Fe or less commonly Mn, Cr, Ti, Li, etc Z is chiefly Si or Al but also may include Fe3+ or Ti Structurally the micas can be classed as di-octahedral (Y = 4) and tri-octahedral (Y = 6). Also if the X ion is K or Na the mica is a common mica whereas if the X ion is Ca the mica is classed as a brittle mica. Common micas: Muscovite Paragonite Glauconite Brittle micas: Margarite Common micas: Phlogopite Biotite Zinnwaldite Lepidolite Brittle micas Clintonite Further Data On Term for mica Internet users who seek mica often also seach for: , photochemical, formica, sheet, formica, counters, chemical, supplier, mica, powder, formica, counter, top, formica, countertop Regularly Occuring Typos with mica include: imca mcia miac ica mca mia mic nica jica kica muca mkca moca maca meca muca mixa mida mifa miva mika micq mics micz mice mici mico micu Commonly appearing connections are : microsoft encyclopedia, microsoft com, micron monitors, microminiature, micro sizer, micro optical, micro mesh, mickleton, michigan macomb county, michelin tyres, michael aram, miami swingers, miami dolphin, mgm studios, mgm casino detroit, mfi homeworks, mexican peso, metaphysical jewelry, metallic paint, metal canopy, metal bed frames, mercedes roadster Similar searches have yielded these phrases mica: photochemical, formica sheet, formica counters, chemical supplier, mica powder, formica counter top, formica countertop Certain copy here mica made available through Wikipedia and the GNU Free Documentation License.