rubin

ädelsten

AI overview

I don't have enough context to write an accurate overview of ruby. The provided context only shows an image caption about ruby-producing countries, but contains no information about what ruby is, its properties, uses, or significance. I cannot provide a 2-sentence overview without inventing facts, which you've asked me not to do.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Mineral.boxbgcolor: b31b1d
Mineral.boxtextcolor: ffffff
Mineral.name: Ruby
Mineral.image: File:Corundum-215330.jpg
Mineral.caption: A ruby crystal from Dodoma Region, Tanzania
Mineral.category: Oxide minerals
Mineral.IMAstatus: Variety of corundum
Mineral.formula: Aluminum oxide with chromium, AlO:Cr
Mineral.system: Trigonal
Mineral.class: Hexagonal scalenohedral (m) H-M symbol: (2/m)
Mineral.symmetry: Rc
Mineral.color: Orangy red through strongly purplish red.
Mineral.habit: Terminated tabular hexagonal prisms
Mineral.cleavage: No true cleavage
Mineral.fracture: Conchoidal, splintery
Mineral.tenacity: Brittle
Mineral.mohs: 9.0
Mineral.luster: Subadamantine, vitreous, pearly (on partings)

via Wikipedia infobox

Wikidata facts

Image: Ruby - Winza, Tanzania.jpg

Show 5 more facts

Commons category: Ruby
MCN code: 7103.91.00
Mohs' hardness: 9.5
density: 4.045
chemical formula: Al₂O₃

Sources (4)

via Wikidata · CC0

Article · Svenska

Rubin är en värdefull ädelsten, en röd varietet av mineralet korund (aluminiumoxid) men kan även ha en brunaktig ton. Den röda färgen orsakas av att mycket små mängder krom ersätter en del av aluminiumet. Namnet härleds från det latinska ordet för röd, ruber eller rubrum. Äkta rubiner är mycket exklusiva, men syntetiska stenar kan skapas till ett mycket lågt pris.

Abstract from DBpedia / Wikipedia · CC BY-SA