Definition of corundum in the English dictionary
The definition of corundum in the dictionary is a white, grey, blue, green, red, yellow, or brown mineral, found in metamorphosed shales and limestones, in veins, and in some igneous rocks. It is used as an abrasive and as gemstone; the red variety is ruby, the blue is sapphire. Composition: aluminium oxide. Formula: Al2O3. Crystal structure: hexagonal.
10 ENGLISH BOOKS RELATING TO «CORUNDUM»
Discover the use of
corundum in the following bibliographical selection. Books relating to
corundum and brief extracts from same to provide context of its use in English literature.
1
The occurrence and distribution of
corundum in the United ...
Acme mine, N. C, corundum at 83 Acworth, Ga., corundum near 80 Addie, N. C,
corundum at 83 Africa, corundum in . . . 93 Alabama, corundum in. 79 Alaska,
corundum in 88 Alps, corundum in "3 Aluminum, use of corundum in manufacture
of ...
Joseph Hyde Pratt, Geological Survey (U.S.), 1901
2
Corundum and Its Occurrence and Distribution in the United ...
Canada, corundum in 40, 49, 63, 151-153 corundum - bearing rocks of Ontario,
map showing location of 152 Ceylon , sapphires in 155 Chandler, W. G., work of
125-126 Chemical composition of corundum 20-21 China, corundum in 157, 158
...
3
Manufacturing Processes 2: Grinding, Honing, Lapping
With conventional grit materials, performance enhancements are possible by
means of newly developed sintered corundum (e.g. sol-gel corundum). Although
the hardness of the grit material is higher than the material to be processed, the ...
4
Description of the
Corundum Stone, and its Varieties, ...
Philosophical Transactions of the Royal Society. II. 233-326.
5
Handbook of Hydrothermal Technology
9.4.4 Hydrothermal Growth of Corundum The hydrothermal synthesis of
corundum began during the 1890s. Corundum is stable under hydrothermal
conditions at T> 400°C[59][60] and is soluble in alkali and carbonate solutions.
According to ...
K. Byrappa, Masahiro Yoshimura, 2008
6
Industrial Minerals and Extractive Industry Geology: Based ...
Montana was the largest USA source of sapphires for these uses. World War II
brought renewed interest in mining sapphires for industrial uses until 1943, when
synthetic corundum replaced sapphires in these applications. Montana sapphires
...
P. W. Scott, Colin Malcolm Bristow, 2002
Previous to the appearance of Morozewicz's memoir it was commonly supposed,
but without good reason, that corundum was not a true pyrogenic mineral. It was
best known as occurring with meta- morphic rocks, and especially in limestones ...
8
Thermal Spray 2004: Advances in Technology and Application : ...
It is well known that spraying of Alumina results usually in formation of other
phases than the desired hard a-phase (corundum) unless stabilizing admixture is
added into the feedstock. In this work Chromia was used for stabilization and ...
9
Perovskites II, Oxides with
Corundum, Ilmenite and Amorphous ...
Volume III/27 covers the magnetic properties of non-metallic inorganic compounds based on transition elements.
Y. Endoh, K. Kakurai, H.P.J. Wijn, 1994
10
Gems and Gemstones: Timeless Natural Beauty of the Mineral World
system Inorganic class Oxide grouP Hematite sPecies Corundum gem varieties
red Corundum (ruby); blue Corundum (blue sapphire); other colored Corundums
(“fancy” sapphires); colorless and black Corundum (leuco and black sapphire) ...
Lance Grande, Allison Augustyn, 2009
10 NEWS ITEMS WHICH INCLUDE THE TERM «CORUNDUM»
Find out what the national and international press are talking about and how the term
corundum is used in the context of the following news items.
Investec Trims Gemfields PLC Target Price to GBX 69.90 (GEM)
... which includes emerald and beryl mining activities; Mozambique, which includes ruby and corundum mining activities; UK, which includes ... «WKRB News, Jul 15»
Garnet Market – Global Industry Analysis and Forecast 2014 – 2020 …
... diamond and corundum among others. The use of substitutes, labor cost and rising inflation could also hamper the growth of garnet market. «Medgadget.com, Jul 15»
Gemfields PLC's Buy Rating Reiterated at Numis Securities Ltd (GEM)
... which includes emerald and beryl mining activities; Mozambique, which includes ruby and corundum mining activities; UK, which includes ... «WKRB News, Jun 15»
Apple extends its exclusive rights to Liquidmetal for another year
Can't be scratched by anything other than diamond or corundum (the same mineral used to make sapphire 'glass'). I've got an 8 year old ... «9 to 5 Mac, Jun 15»
Gemfields PLC Rating Reiterated by Numis Securities Ltd (GEM)
... which includes emerald and beryl mining activities; Mozambique, which includes ruby and corundum mining activities; UK, which includes ... «The Legacy, Jun 15»
Gemfields PLC 25.7% Potential Upside Implied by finnCap
... which includes emerald and beryl mining activities; Mozambique, which includes ruby and corundum mining activities; UK, which includes ... «DirectorsTalk Interviews, Jun 15»
Pakistan can become ornaments manufacturing hub: PCJCCI
The gemstones displayed in the exhibition included Emeralds, Rubies, Peridots, Aquamarines, Topaz, Tourmalines, Corundum, Quartz, ... «Pakistan Observer, Jun 15»
Corundum Market: Global Industry Analysis and Opportunity …
Future Market Insights has announced the addition of the “Corundum Market: Global Industry Analysis and Opportunity Assessment 2015 ... «Digital Journal, Jun 15»
Jackson jeweler traveled the world for his craft
He decided to specialize in corundum, the mineral known as sapphire and ruby. “I wanted to learn how to identify gemstones from the rough,” ... «Jackson Clarion Ledger, Jun 15»
Fused Cast High Zirconia Block vs. Fused Cast AZS Block
Fused cast AZS contains corundum crystals, baddeleyite crystals and a matrix glass phase. As fused cast high zirconia block contains less ... «Glass on Web, Jun 15»
