- cleavage flakes
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спайные листочки
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
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
art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… … Universalium
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