Fulgurite

Fulgurites are natural hollow glass tubes formed when quartzose sand, silica, or soil is struck by lightening.

Uses

7.01 Meet the New Boss

The Winchesters and Bobby obtain a binding spell from Crowley and use it to bind Death. One of the ingredients of the spell is "an act of God crystallised forever" which Bobby deduces is fulgerite which is formed when lightning (as Act of God) fuses the silica in sand. Sam, Dean and Bobby drive to the home of Dr. and Mrs. Weiss, a wealthy couple who recently bought a large piece of fulgurite at an auction.

8.16 Remember the Titans

After extensive research in The Bunker, Dean finds a diary from a Greek hunter named Drakopoulos that detailed a method of trapping and potentially killing Zeus, one which involves the bone of his followers, and frozen energy from the hand of Zeus, which he assumes means fulgurite, and a stake made from a tree struck by lightening. Hayley tells Dean that fulgurite is found in many New Age shops where it is used in jewellery.

Fulgurite in Lore

In some New Age spiritual practices, fulgurite is said to enhance the power of prayer, and connections to angels source.