Ruby dust

Ruby dust can be obtained by dismantling rubies. It is also used to craft the following items:
 * Black Unicorn
 * Lesser Devana runestone
 * Feline steel sword
 * Feline steel sword - enhanced
 * Feline silver sword
 * Feline silver sword - enhanced
 * Lesser glyph of Quen
 * Ofieri boots
 * Ofieri saber
 * Ofieri scale armor
 * Ofieri sharovary
 * Thyssen armor
 * Tir Tochair blade