platy structure
51Nabesite — is a rare silicate mineral of the zeolite group with the chemical formula Na2BeSi4O10·4(H2O). It occurs as colorless to white orthorhombic crystals in thin platy mica like sheets. It has the zeolite structure. Its Mohs hardness is 5 to 6 and its… …
52Despotiko — Δεσποτικό Geography Coordinates: 36°58′N 24°59′E / …
53Railways of Greece — The Railways of Greece have a compex history which starts in 1869, with Athens Piraeus Railway .HistoryGreece became independent in 1832, the birth of the newly formed sovereign state coinciding with the start of the railway era. By 1835 plans… …
54kaolin — kaolinic, adj. /kay euh lin/, n. a fine white clay used in the manufacture of porcelain. Also, kaoline. [1720 30; < F < Chin (Wade Giles) Kao1ling3, (pinyin) Gaoling mountain in Jiangxi province that yielded the first kaolin sent to Europe (gao… …
55swordtail — /sawrd tayl , sohrd /, n. any of several small, brightly colored, viviparous, freshwater fishes of the genus Xiphophorus, native to Central America, having the lower part of the caudal fin elongated into a swordlike structure: often kept in… …
56vermiculite — /veuhr mik yeuh luyt /, n. any of a group of platy minerals, hydrous silicates of aluminum, magnesium, and iron, that expand markedly on being heated: used in the expanded state for heat insulation and as a plant growth medium. [1815 25, Amer.;… …
57epistilbite — ▪ mineral hydrated sodium and calcium aluminosilicate mineral in the zeolite family. It forms piezoelectric crystals of monoclinic symmetry and platy habit; the latter property has caused epistilbite to be assigned to a group typified by… …
58singe — [ sɛ̃ʒ ] n. m. • 1170; lat. simius, var. de simia 1 ♦ Mammifère primate (simiens), caractérisé par une face nue, un cerveau développé, des membres préhensiles à cinq doigts. Principaux singes : cercopithèque, macaque, magot, rhésus; cynocéphale,… …
59flow cleavage — noun : cleavage that results from flow in hard rock and that is characterized by more or less slaty structure and reorientation or recrystallization of certain included minerals into a platy form * * * Petrol. cleavage resulting from the parallel …
