bn:00069229n
Noun Concept
Categories: Minerals in space group 167, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Superhard materials, Corundum gemstones, Oxide minerals
EN
sapphire  Blue Sapphire  Padmaraga  Padparacha  padparadscha
EN
A precious transparent stone of rich blue corundum valued as a gemstone WordNet 3.0
Definitions
Relations
Sources
EN
Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide with trace amounts of elements such as iron, titanium, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon. Wikipedia
Blue gemstone in the corundum family. Wikipedia Disambiguation
Gem variety of corundum Wikidata
A clear deep blue variety of corundum, valued as a precious stone. OmegaWiki