1. Crystals from some other localities, notably from Monteponi in Sardinia, are transparent and colourless, possessed of a brilliant adamantine lustre, and usually modified by numerous bright faces.

2. Adamant or Adamantine, a generic name for a very hard material; Adamantine (veneer) Adamantine lustre, non-metallic, brilliant light reflecting and transmitting properties of minerals; Adamantine spar, mineral, a variety of corundum "Adamantine", a song by the band Thirty Ought Six Adamantine, the sixth studio album by Irish singer-songwriter and musician Enya