Balas ruby : A variety of spinel ruby, of a pale rose red, or inclining to orange. See Spinel.

Example:


Taxonomy
spinel, ions, tetrahedral, octahedral holes, minerals, oxide, Synthetic Spinel, A2, spinel structure, rubies, B3, interaction, free encyclopedia, spinel group, anions, Fe3O4, Samarian Spinel, crystal field.

Defination from the web:
Balas ruby) Jump to: navigation, search. This article needs additional citations for verification. ... Balas" is derived from Balascia, the ancient name for Badakhshan, a region in central Asia situated in the ... This is why spinel and ruby are often found together. ...