- devitrified glass
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расстеклованный обсидиан
English-Russian dictionary of geology. 2011.
devitrified glass
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Glass-ceramic-to-metal seals — Glass to metal seals have been around for many years, with one of the most common uses being lamp bulb seals. A more recent invention is glass ceramic to metal seals.Properties Glass ceramics are polycrystalline ceramic materials prepared by the… … Wikipedia
volcanic glass — a natural glass produced when molten lava cools very rapidly; obsidian. [1830 40] * * * Any glassy rock formed from lava or magma that has a chemical composition close to that of granite. Such molten material may reach very low temperatures… … Universalium
Devitrification — is the opposite of vitrification, i.e., the process of crystallization in a formerly crystal free (amorphous) glass.[1] The term is derived from the Latin vitreus, meaning glassy and transparent.[2] Devitrification in glass art Devitrification… … Wikipedia
flow banding — GLOSSARY OF VOLCANIC TERMS A foliation commonly observed in intermediate and felsic lavas, that results from shearing of the lava during laminar flow (Cas and Wright, 1987, p. 78). In rhyolite flows, flow banding is commonly exhibited by… … Glossary of volcanic terms
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
arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… … Universalium
Spherulite — Spherulites, in petrology, are small, rounded bodies that commonly occur in vitreous igneous rocks. They are often visible in specimens of obsidian, pitchstone and rhyolite as globules about the size of millet seed or rice grain, with a duller… … Wikipedia
ambitty — (ˈ)am|bid.ē adjective Etymology: probably from French ambité : devitrified used in glass manufacture of glass in the pot during manipulation … Useful english dictionary
Bentonite — is an absorbent aluminium phyllosilicate generally impure clay consisting mostly of montmorillonite. There are a few types of bentonites and their names depend on the dominant elements, such as K, Na, Ca, and Al. As noted in several places in the … Wikipedia
List of countries by bentonite production — Bentonite is an absorbent aluminium phyllosilicate generally impure clay consisting mostly of montmorillonite. There are a few types of bentonites and their names depend on the dominant elements, such as Potassium, sodium, calcium, and aluminum.… … Wikipedia
devitrify — [c]/diˈvɪtrəfaɪ/ (say dee vitruhfuy) verb (devitrified, devitrifying) –verb (t) 1. to deprive, wholly or partly, of vitreous character or properties, especially to process glass so that it develops a minute crystalline structure, with a… …
