Light Smokey Quartz in a diagonal Cube of 4mm cube with a centr hole about 1mm. Lengthwise through the hole is 6mm. Makes a great inexpensive accent to all our Murano Glass Beads, it is great with our Murano Acciaio (grey/steel) color.
A little history: Quartz is the second most abundant rock on the earth. In Europe and the Middle East, varieties of quartz since antiquity been the most commonly used minerals in the making of jewelry. Quartz is also said to have healing effects and through history medicine people have worncrystal to direct, align, clear and balance energy.