Large Fulgurite Specimen - Petrified Lightning Stone from Libyan Desert #14 mapatizya Amethyst while the reverse side displays

while the reverse side displays a more prominent black matrix intersected by natural surface lines

or manganese

Opalised Dendritic Merlinite Crystal Sphere

Large Size : 22 x 11 x 7

5 x 19 x 7

Large Fulgurite Specimen - Petrified Lightning Stone from Libyan Desert #14 mapatizya Amethyst while the reverse side displaysLarge Fulgurite Specimen #14 Petrified Lightning Also known as Lightning Stone or Petrified Lightning, Fulgurite is formed when a lightning bolt strikes sandy ground, instantly fusing the grains into delicate, glass like formations. Sourced by Distinction from the Libyan Desert, this specimen displays a beautifully irregular structure with a naturally sandy, glassy texture. Fascinating to collectors, educators and crystal enthusiasts alike, it