volcanic glass

Examples

• All

• Both are deep, and both were made with a blade of volcanic glass on a planet we call The Hand, a year after my father left.

  Fiction book (1994)

• Perlite is expanded volcanic glass, which is accomplished through a heating procedure intended to form lightweight particles.

  Academic text (2009)

• A piece of black, volcanic glass.

  The Shawshank Redemption (1994)

• A piece of black volcanic glass.

  Fiction book (1994)

• Across a sea of thin volcanic glass.

  Land of the Lost (2009)

• Is it clay or fine volcanic glass?

  Academic text (1994)

• Volcanic glass.

  Fiction book (1994)

• What has landed in my eye are small shards of volcanic glass—also one of Iceland's most persistent problems.

  Academic text (2007)

• I carry two weapons of my own choice: a small, worn laser-aimed projectile rifle of the kind every Hamusek father gives his son at thirteen, and a long blade of volcanic glass from The Hand, the seventh planet of our star, a blade I made myself on that world half a century ago.

  Fiction book (1994)

• The steep sides of the caldera were a study in deep red and black, with glints here and there of volcanic glass.

Synonyms

O

obsidian

vsvolcanic glass

12 7.9

A hard dark rock made when lava cools quickly and becomes like glass with a smooth shiny surface

is the general term for this material rather than one specific named example

T

tachylite

vsvolcanic glass

• Specialized

9.9

A dark, glassy volcanic rock that forms when hot lava cools very fast

is the broader material type not restricted to basaltic origins

N

natural glass

vsvolcanic glass

• Specialized

6.1

A shiny rock that forms when lava cools very fast

is the narrower term used only for lava derived material

Surface Forms

Morphology

Etymology