Mexican Fire Opal Micro Faceted Rondelles measure approximately 3mm in diameter, have a vitreous luster, good polish and faceting creating a symmetrical rondelle shape with consistent depth, beads are transparent to translucent in quality, bodies range from colorless todeep orangey red in color, and the Fire Opalhas someplay of color. These beads have an excellent make and are well matched on the strand. Thedrill hole is approximately 0.05mm inside diameter.