cleavage flakes

См. также в других словарях:

• mica — micalike, adj. /muy keuh/, n. any member of a group of minerals, hydrous silicates of aluminum with other bases, chiefly potassium, magnesium, iron, and lithium, that separate readily into thin, tough, often transparent, and usually elastic… …   Universalium

• Mica — For other uses, see Mica (disambiguation). Rock with mica …   Wikipedia

• hand tool — any tool or implement designed for manual operation. * * * Introduction  any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …   Universalium

• Native elements — ▪ Table Native elements name colour lustre Mohs hardness specific gravity habit or form allemontite tin white; reddish gray metallic 3–4 5.8–6.2 kidneylike masses amalgam gold amalgam yellowish metallic 15.5 lumps or grains moschellandsbergite… …   Universalium

• slate — slate1 /slayt/, n., v., slated, slating. n. 1. a fine grained rock formed by the metamorphosis of clay, shale, etc., that tends to split along parallel cleavage planes, usually at an angle to the planes of stratification. 2. a thin piece or plate …   Universalium

• Plagioclase — A photomicrograph of a plagioclase crystal under cross polarized light. The plagioclase crystal shows a distinct banding effect called a Polysynthetic twinning. (unknown scale) General Category …   Wikipedia

• Molybdenite — Euhedral molybdenite on quartz, Molly Hill mine, Quebec, Canada. The large crystal is 15mm across General Category Sulfide mineral …   Wikipedia

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• Chert — For the Spanish municipality, see Xert. Chert Chert (  / …   Wikipedia

• Dandruff — For the album by Ivor Cutler, see Dandruff (album). Dandruff Classification and external resources A microscopic image of human dandruff ICD 9 …   Wikipedia

• clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …   Universalium