- industrial (grade) diamonds
- Горное дело: низкосортные алмазы, технические алмазы
Универсальный англо-русский словарь. Академик.ру. 2011.
industrial (grade) diamonds
Смотреть что такое "industrial (grade) diamonds" в других словарях:
grade — grade1 W3S3 [greıd] n ▬▬▬▬▬▬▬ 1¦(standard)¦ 2¦(rank)¦ 3¦(mark in school)¦ 4 make the grade 5¦(school year)¦ 6¦(slope)¦ ▬▬▬▬▬▬▬ [Date: 1500 1600; : French; Origin: Latin gradus step, d … Dictionary of contemporary English
Diamonds as an investment — An uncut diamond, not showing the prized optical properties of cut and polished versions. Contents 1 History 2 Price … Wikipedia
industrial diamond — ▪ mineral any diamond that is designated for industrial use, principally as a cutting tool or abrasive. In general, industrial diamonds are too badly flawed, irregularly shaped, poorly coloured, or small to be of value as gems, but they are … Universalium
industrial diamond — noun A diamond of quality too low to be gem grade but useful in industry because of the diamonds great hardness, usually used as an abrasive … Wiktionary
Brown diamonds — A collection of brown diamonds in the Smithsonian. The pear shaped pendant at the bottom of the necklace weighs 67 carats (13 g). Brown diamonds are the most common color variety of natural diamonds. The brown color makes them less… … Wikipedia
Ore grade — is a measure that describes the concentration of a valuable natural material (such as metals or minerals) in its surrounding ore. Ore grade is used to assess the economic feasibility of a mining operation: the cost of extracting a natural… … Wikipedia
Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) … Wikipedia
Carbon — (), but as most compounds with multiple single bonded oxygens on a single carbon it is unstable.] Cyanide (CN–), has a similar structure, but behaves much like a halide ion (pseudohalogen). For example it can form the nitride cyanogen molecule… … Wikipedia
Allotropes of carbon — Eight allotropes of carbon: a) Diamond, b) Graphite, c) Lonsdaleite, d) C60 (Buckminsterfullerene or buckyball), e) C540, f) C70, g) Amorphous carbon, and h) single walled carbon nanotube or buckytube. This is a list of the allotropes of carb … Wikipedia
Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting … Wikipedia
Philip Arnold — (1829 1878) was a confidence trickster from Elizabethtown, Kentucky, and the brains behind the legendary diamond hoax of 1872, which fooled people into investing in a phony diamond mining operation. He managed to walk away from the hoax with more … Wikipedia
