- perlitic glass
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перлитовое стекло
English-Russian dictionary of geology. 2011.
perlitic glass
Смотреть что такое "perlitic glass" в других словарях:
perlite — perlitic /perr lit ik/, adj. /perr luyt/, n. Petrog. a volcanic glass in which concentric fractures impart a distinctive structure resembling masses of small spheroids, used as a plant growth medium. Also, pearlite. [1825 35; < F; see PEARL1,… … Universalium
Tachylite — (also spelled tachylyte) is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. It is a basic type of igneous rock that is decomposable by acids and readily fusible. The color is a… … Wikipedia
perlite — noun Etymology: French, from perle pearl Date: 1833 volcanic glass that has a concentric shelly structure, appears as if composed of concretions, is usually grayish and sometimes spherulitic, and when expanded by heat forms a lightweight… … New Collegiate Dictionary
Quartz-porphyry — Quartz porphyry, in petrology, is the name given to a group of hemi crystalline acid rocks containing porphyritic crystals of quartz in a fine grained matrix, usually of micro crystalline or felsitic structure. In specimens, the quartz appears as … Wikipedia
perlite — n. volcanic glass forming, when expanded by heat, an insulating material and a light weight aggregate added to concrete and plaster or used as soil conditioner. ♦ perlitic, a. having perlite like texture … Dictionary of difficult words
perlite — [pʉr′līt΄] n. [Fr < perle,PEARL1] 1. Geol. a greenish volcanic glass, similar to obsidian, with a pearly luster and multiple, minute concentric cracks, used as insulation and in making concrete, plaster, etc. 2. PEARLITE perlitic [pər lit′ik]… … English World dictionary
