Herkimer Diamonds are the most powerful of all Quartz crystals. The meaning of the name Herkimer Diamond, relates to the location where they are where they were first found at Herkimer, New York USA. They are not really diamonds but are a variety of double terminated quartz that embody a high crystal energy. Herkimers are often extremely clear stones but many have black anthraxolite inclusions. Some even have water inclusions within them, which aid the healing of emotional problems.