Crystal System: Trigonal. Member of: Hematite Group. Name: Named "corinvindum" in 1725 by John Woodward and derived from the Sanskrit, kuruvinda ("Ruby"). Richard Kirwan used the

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Here we use corundum to present a comprehensive quantitative description of the causes of color in a gem material and illustrate its predictive power. Natural corundum has six major chromophores that cause color: Cr 3+, h •-Cr 3+, Fe 3+, h •-Fe 3+, Fe 2+-Ti 4+, and V 3+. We use synthetic samples doped with a single chromophore to study

Corundum is crystalline aluminum oxide, Al2O3, second hardest on Mohs Scale, and one of the most popular (and expensive) of gem minerals.

Corundum has been historically known by many names: ruby, sapphire, hyacinthos, asteria, adamant, etc. Originally named "corinvindum" in 1725, this gemstone's 

Corundum is very compact, dense, and lacks gemstone cleavage. It's also the second hardest natural mineral after diamond. Gem-quality corundum is also quite rare. These factors make both varieties of corundum some of the most highly desired jewelry stones. Ruby is the red variety of corundum. All other colors of corundum, including colorless

Comments: Bright red ruby corundum crystals in white marble matrix. Location: Jagdalak (Jagdalek; Jagdalik) Ruby Mine, Sorobi District, Konar (Kunar; Konarh; 

Corundum is an open-source, high-performance FPGA-based NIC and platform for in-network compute. Features include a high performance datapath, 10G/25G/100G Ethernet, PCI

Corundum definition: a white, grey , blue , green , red, yellow, or brown mineral, found in metamorphosed | Meaning, pronunciation, translations and 

Ans: Corundum is a crystalline type of aluminium oxide with traces of iron, titanium, vanadium, and chromium. It is a mineral that contributes to the formation of rocks. It is also a naturally

The color of corundum gems is therefore determined by trace element impurities that are in solution in the corundum lattice. Such gems are referred to as allochromatic ("other colored"). "In solution" is an important distinction to make. Sugar dissolved in water is "in solution.". Fine sand stirred into water is not.