Isolated Broken Obsidian Rock Against White Background. Shattered Natural Black Volcanic Glass That Displays Conchoidal Fracture Breakage Is Split Into Variety Of Large And Small Shards Of Transparent Silica Dioxide.

KEYWORDS

amorphous archaeology arrowhead atoms background black blade break breakable breakage brittle broke broken brown chunks conchoidal cooling cryptocrystalline crystalline cut deposit dioxide displays dragon dragonglass dropped edge education fast fire fracture frozen geological stress geology geosciences glass green knapp knapping knife large material medical miniscule natural non obsidian perlite petrology raw resource rock crystal spiritual rockhound shards sharp shattered shiny silica silicate silicon small smashed solidification speckled split stone thrones tool transparent uneven unorganized variety vesicles volcanic volcanology white