Help identifying a stone I found

[Cybersix]

obsidian breaks like glass.

Lies, you can only break obsidian with a diamond pickaxe

[Ad Bot]

[halcynthis]

It looks like graphite. Does it write on stuff?

Somewhat
http://i.imgur.com/ofeg7jJ.jpg
Left side is from the stone and right is from a normal graphite pencil. The stone comes out more of a brown color when its on paper.

[Headcrab Zombie]

It looks like graphite. Does it write on stuff?

Tons of mineral 'write' on stuff.
It's a standard test called a streak test and can be used to help identify minerals.

Somewhat
http://i.imgur.com/ofeg7jJ.jpg
Left side is from the stone and right is from a normal graphite pencil. The stone comes out more of a brown color when its on paper.

Yeah those look nothing alike

[AdinX]

100% certain, for a fact, that is obsidian. In terms of the red hue,

a mixture of either/or iron and magnesium giving the reddish tinge.

So it's pretty much worthless?

What were you expecting? Sell a black 'gem' on ebay for 12 grand? fat chance.

No, it's not completely useless. Give the time, patience and skill of hand, you could make your own obsidian arrowhead. If all goes well, you could thread it and have a very nice necklace for yourself or someone else.

Otherwise if that's not you, toss it. Obsidian is literally found anywhere where volcanic activity of some form has occurred, and even then it can be found outside of volcanic areas.

[Nonnel]

Looks like graphite to me.

[AromaniaFTW]

RETUUUURN THE SLAAAAAAB

OR SUFFER MY CUUUUURSE

am i really the only other person who got the reference right away

[halcynthis]

100% certain, for a fact, that is obsidian. In terms of the red hue,What were you expecting? Sell a black 'gem' on ebay for 12 grand? fat chance.

No, it's not completely useless. Give the time, patience and skill of hand, you could make your own obsidian arrowhead. If all goes well, you could thread it and have a very nice necklace for yourself or someone else.

Otherwise if that's not you, toss it. Obsidian is literally found anywhere where volcanic activity of some form has occurred, and even then it can be found outside of volcanic areas.

I definatly wasn't expecting a lot from it. Maybe even around just $20. I've never saw a stone like this before so I was curious.

[weaver123]

am i really the only other person who got the reference right away

No. That episode frightened me when I was little.

[Headcrab Zombie]

100% certain, for a fact, that is obsidian.

Looks like graphite to me.

http://i.imgur.com/ofeg7jJ.jpg

A reddish brown streaks matches neither the streak of obsidian (white) or graphite (grey, pencil)
So no, it is neither obsidian or graphite.
EDIT : Using a piece of paper (I'm assuming) instead of a streak plate shouldn't completely change the color, I can't imagine it would be anything more than a hardness factor

[RedGajin]

looks like some type of rock

[Cybersix]

OR SUFFER MY CUUUUURSE

am i really the only other person who got the reference right away

Just because you acknowledged it, doesn't mean you're the only one who got it

[Headcrab Zombie]

Actually, given a red-brown streak, I'm going to change my guess to hematite

[AdinX]

Actually, given a red-brown streak, I'm going to change my guess to hematite

Hematite normally forms around a lot of impurities though, does it not?

[Frostbyte]

It's a footbawl!

[Epicduke]

Try scraping it on other minerals or something, maybe you can figure out it's hardness and use that to help identify it.