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Ruby
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This page is about ruby the stone. For ruby the language, see ruby (programming language) .
| Ruby | |
|---|---|
 A ruby gemstone | |
| General | |
| Category | Mineral |
| Formula (repeating unit) |
aluminium oxide with chromium, Al2O3 |
| Identification | |
| Color | Red shades |
| Luster | Vitreous |
| References | [1] |
Ruby is a type 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]
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.
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