Natural phenomenons made by Mother Nature.  Small size barrel-shaped pendant is Rutilated Quartz.  Many interior needles of gold and black Rutile are suspended within the quartz and can be seen from all angles piercing through the gemstone.  Sterling silver setting with large bail.  Curve of the barrel shape allows for viewing of the interior needles from many angles.  Gemstone is primarilly clear with colored golden Rutile crystal needles.