Yes, natural obsidian can chip, crack, and break if hit by something. Aztecs used obsidian in arrow heads, and you can easily chip obsidian with a well placed hit with a rock. In other words: you can break obsidian easily.
One type of obsidian is snowflake obsidian, which is black with white mineral inclusions that resemble snowflakes.
No. Obsidian is brittle.
how is obsidian dependent on minerals
Obsidian is not magnetic.
The common name for obsidian rock is volcanic glass.
There is currently no bulletproof laptop case,although there are bulletproof laptops used by the military.
la roux is the singer to bulletproof.
she wants to be bulletproof
BulletProof Messenger was created in 2001.
BulletProof Music was created in 1997.
Yes, the bulletproof coffee is organic.
Bulletproof - soundtrack - was created in 2009-01.
The duration of Bulletproof Monk is 1.73 hours.
Gorilla glass is scratchproof, but I don't think it is bulletproof.
There are no living things on Earth that are bulletproof.
Bulletproof Heart was created on 1989-10-13.
Bulletproof Monk was released on 04/16/2003.