Ultra-sharp scalpels used in delicate procedures like eye surgery are still crafted by hand from volcanic glass called obsidian.

FORBES: No. 1 The Knife

Instead, out comes a synthetic gaseous fuel and a lump of shiny rock, not unlike volcanic glass, with toxins locked up inside in relative safety.

WSJ: Grappling With a Garbage Glut

Volcanic glass transformed into a mineral called chlorite.

BBC: NEWS | Science/Nature | Early life thrived in lava flows

Fassbinder films life in the cosseted class as a masque of glass and mirrors, replete with alluring deceptions and suave surfaces that belie volcanic passions.

NEWYORKER: Despair

The trip from the west begins in Seattle at 4:40 pm with a complimentary glass of champagne, sipped while you enjoy the watery vista of Puget Sound with the snowy volcanic dome of Mount Rainier winking in the background.

BBC: Glacier National Park by train