what is an obsidian blade?

Answer 1

Obsidian is a type of naturally occurring glass, produced by volcanoes (igneous origin) when a felsic lava cools rapidly and freezes without sufficient time for crystal growth (see glass transition temperature). It is commonly found within the margins of felsic lava flows, where cooling is more rapid. Because of the lack of crystal structure, obsidian blade edges can reach almost molecular thinness, leading to its ancient use as arrowheads, and its modern use as surgical scalpel blades.

Answer 2

It is a blade made from obsidian. Obsidian is a type of naturally occurring glass, produced by volcanoes. Obsidian was highly valued in certain Stone Age cultures because, like flint, it can be fractured to produce sharp blades or arrowheads

Answer 3

This is a blade(usually a spear, or kinfe,) Mde from Volcanic rock
.see http://en.wikipedia.org/wiki/Obsidian

Obsidian is a type of naturally occurring glass, produced by volcanoes (igneous origin) when a felsic lava cools rapidly and freezes without sufficient time for crystal growth (see glass transition temperature). It is commonly found within the margins of felsic lava flows, where cooling is more rapid. Because of the lack of crystal structure, obsidian blade edges can reach almost molecular thinness, leading to its ancient use as arrowheads, and its modern use as surgical scalpel blades.
This stone when shaped right can be as effective in surgery or skinning animals as any of today;s mosdern knives or scaples.

Answer 4

A sword or knife made of the material called obsidian

Answer 5

a blade made from obsidian(a volcanic rock)

Answer 6

My switch blade