kidzsearch.com > wiki Explore:




Ruby
KidzSearch Safe Wikipedia for Kids.
For other uses, see Ruby (disambiguation).
Ruby | |
---|---|
A ruby gemstone | |
General | |
Category | Corundum variety, Oxide mineral |
Formula (repeating unit) | aluminium oxide with chromium, Al2O3 |
Identification | |
Color | Red shades |
Luster | Vitreous |
References | [1] |
A ruby is a kind of precious stone. It is often associated with emerald, sapphire and topaz.[1] It is usually red, but can sometimes be other colors.[1] It is formed of aluminum and oxygen (Al2O3)[1], and that means it's a kind of corundum. A small amount of chromium makes the color.
References
- ↑ 1.0 1.1 1.2 1.3 "Ruby at Mindat". Mindat.org. http://www.mindat.org/min-3473.html. Retrieved 23 August 2013.