'Magical' rock crystals found at Stone Age ceremonial site in England
Hundreds of fragments of a rare transparent type of quartz called "rock crystal" were used to decorate Neolithic graves and other structures at a ceremonial site in the west of England, archaeologists say.
TroibNews 
Hundreds of fragments of a rare transparent type of quartz called "rock crystal" were used to decorate Neolithic graves and other structures at a ceremonial site in the west of England, archaeologists say.
