Pele's hair

"[citation needed] Wind often carries the light fibers high into the air and to places several kilometers away from the vent.

Strands of Pele's hair commonly gather on high places like treetops, radio antennas, and electric poles.

[3] It is usually found in gaps in the ground, mostly near vents, skylights, ocean entry, or in corners where Pele's hair can accumulate.

Touching Pele's hair is not recommended, because it is very brittle and very sharp, and small broken pieces can enter the skin.

[4] Also, the shape of the tears can provide an indication of the velocity of the eruption, and the bubbles of gas and particles trapped within the tears can provide information about the composition of the magma chamber.The strands are created when molten lava is ejected into the air and form tiny droplets, which elongate perfectly straight.

Pele's hair, with a hand lens as scale
Strands of Pele's hair under microscope view
Pele's hair caught on a radio antenna mounted on the south rim of Puʻu ʻŌʻō , Hawaiʻi , July 22, 2005
First description by J. Dana , 1849
Pele's hair on a pahoehoe flow at Kīlauea Volcano, Hawaiʻi , March 27, 1984
Scheme of a Hawaiian eruption