Fulgurite is lightening that has struck sand. The massive charge from the lightening that was used to create the fused sand makes this a high vibrational crystal.
This listing is for blonde fulgurite, which is a variety that gets its name from the blond sands of the Sahara Desert.
1 pc. Sizes varies. Approx. 1-2"
There is another variety of fulgurite called singing fulgurite, which produces a high pitched sound when two pieces are struck together. Please see my other listing for singing fulgurite if you are interested.