Tumbled Small Amethyst

Small, generally light-colored tumbled Amethyst.  The yellow cube is a typical bouillon cube of about one-half inch on a side.  Photographed for scale.

Purple Quartz has been called Amethyst for over 2,000 years.  In fact, the name is a contraction of two ancient Greek words meaning "against drunkeness".  And, it that culture was thought to protect one from the harmful effects of alcohol.