Ruby is aluminium oxide; chromium is only a natural dopant, in traces. The concentration of chromium is not constant in rubies.
Rubies (and sapphires also) are compounds of a crystallized mineral called corundum that consists mostly of aluminum oxide (Al2O3).
Rubies are a variety of corundum, the mineral name for aluminum oxide, Al2O3. The red color comes from trace amounts of chromium.
The two main elements present in a red ruby--aluminium and oxygen. This is actually the exact same main elements found in a sapphire, which has the same chemical composition but simply differs in colour which is caused by traces of a different elements (iron, titanium) which causes it to be blue versus a rubies red colour. The red colour of the ruby is due to traces of chromium in the aluminum oxide. Corundum (the aluminum oxide base of these gems) can be turned blue, yellow, pink, purple, orange, greenish or pink-orange by the impurities.
Ruby is mostly aluminum oxide with a bit of chromium. It has good thermal conductivity, but won't conduct electricity. A link can be found below for more information.
Corundum is the mineral/crystalline form of Aluminium Oxide, and is mainly mined from metamorphic rocks such as schists, gneiss and marbles. Corundum can also be mined from pegmatites, seyenite and ultramafic intrusive rocks. The varying colouration of corundum is due to chemical impurities, ie, chromium present in the crystal will give it a red colour - hence the gemstone will be a ruby.
Ruby is aluminium oxide (Al2O3) with chromium as an impurity.
Ruby is not a chemical compound and so does not have a precise chemical structure. It consists mainly of Aluminium Oxide Al2O3, and also contains chromium which gives ruby its characteristic red or reddish brown tint.
The ruby is a variety of the mineral corundum, so the ruby is indeed a mineral.
Aluminium Oxygen and Chromium
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide - Al2O3). The red color is caused mainly by the presence of the element chromium.
no there is no other names for ruby in English. ruby is a mineral made up of aluminum oxide with chromium.
Rubies (and sapphires also) are compounds of a crystallized mineral called corundum that consists mostly of aluminum oxide (Al2O3).
The chemical composition of ruby is aluminum oxide (Al 2 O3). Its specific gravity is 3.99 to 4.00 and refractive index range is 1.760-1.768 to 1.770-1.779. Ruby's hardness on Mohs scale is 9. It's the next hardest mineral after diamond.
Both sapphire and ruby are a crystallized form of the compound aluminium oxide which is a good insulator.
Ruby is a form of the mineral corundum, which has the formula Al2O3.
Rubies are a variety of corundum, the mineral name for aluminum oxide, Al2O3. The red color comes from trace amounts of chromium.
Well the elements in a rubie are called rubix resembling a rubix cube in detail. Unfortanatly the element rubix is not a confusing puzzle but a small red pure element. number 431$% on the element chart. :) hope u found what u need!