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Omid
06-10-2008, 01:48 PM
I heard they're around rivers... I've never seen them...

Anyone have any ideas or pics or something?

Beo
06-10-2008, 01:53 PM
Called flint.

Rick
06-10-2008, 02:26 PM
There's a thread on it.

http://www.wilderness-survival.net/forums/showthread.php?t=1285&highlight=rocks+sparks

Teotwawki
06-10-2008, 02:26 PM
They are usually found in Bedrock.

Was that a serious question?

Flint was also commonly used to create stone tools - spear tips, arrow heads, cutting tools.

Tried making a Clovis spear head once - it is difficult. Decided not to go mammoth hunting.

Beo
06-10-2008, 02:35 PM
There are other rocks that create sparks, I was jost joking around. If you take two well dried rocks about fist size and strike them together they spark, i bellieve it has to do with compound make up of the rock, some have more metal fragments in them some may have flint I'm not sure but I have done it and don't know the name of the rocks.

Chicago Dan
06-10-2008, 02:56 PM
There are other rocks that create sparks, I was jost joking around. If you take two well dried rocks about fist size and strike them together they spark, i bellieve it has to do with compound make up of the rock, some have more metal fragments in them some may have flint I'm not sure but I have done it and don't know the name of the rocks.

Banging two rocks together is putting a whole lot of force(energy) in a very small area. That energy has to go somewhere and it does in the form of heat...sparks. Think of it as friction accelerated.

Will work with other "hard" elements too like in artificial sparkers, Metal(think trains), etc.

Omid
08-15-2008, 07:16 PM
Banging two rocks together is putting a whole lot of force(energy) in a very small area. That energy has to go somewhere and it does in the form of heat...sparks. Think of it as friction accelerated.

Will work with other "hard" elements too like in artificial sparkers, Metal(think trains), etc.

good to know

Justin Case
04-07-2011, 11:52 AM
Banging two rocks together is putting a whole lot of force(energy) in a very small area. That energy has to go somewhere and it does in the form of heat...sparks. Think of it as friction accelerated.

Will work with other "hard" elements too like in artificial sparkers, Metal(think trains), etc.

Has anyone here ever started a fire with two rocks ?

i am thinking if anyone has its gotta be YCC ;)

Justin Case
04-07-2011, 11:54 AM
There's a thread on it.

http://www.wilderness-survival.net/forums/showthread.php?t=1285&highlight=rocks+sparks

Ooops, My bad,, Ok ;)

hunter63
04-07-2011, 12:34 PM
JC try this link........
http://wildwoodsurvival.com/survival/fire/twostones/abbww/index.html

Justin Case
04-07-2011, 12:37 PM
JC try this link........
http://wildwoodsurvival.com/survival/fire/twostones/abbww/index.html

Thanks H63,,,, That sure will make you appreciate a bic ! :)

lucznik
04-08-2011, 06:26 PM
Banging two rocks together is putting a whole lot of force(energy) in a very small area. That energy has to go somewhere and it does in the form of heat...sparks. Think of it as friction accelerated

Will work with other "hard" elements too like in artificial sparkers, Metal(think trains), etc.

Has anyone here ever started a fire with two rocks ?
No, but I've been thinking about trying Chicago Dan's idea of striking two trains together. Not sure how I'll get them in my pack though...

ezzmind
07-28-2011, 01:50 PM
I heard they're around rivers... I've never seen them...

Anyone have any ideas or pics or something?
i have seen thoes rocks at scotts flat

Pocomoonskyeyes3
07-28-2011, 02:38 PM
This might help....
http://www.wilderness-survival.net/forums/showthread.php?16357-Finding-Flint

kyratshooter
07-28-2011, 02:53 PM
Flint normally will not spark unless struck against hardened steel. Two pieced of flint smacking each other will usually caue flakes, splinters and significant blood loss.

Iron Pyrite (also known as fools gold) will spark when struck with flint or other pyrite and has been used as a firemaker since the time of the ancient Greeks, who named the metal firestone.

your_comforting_company
07-29-2011, 06:22 AM
I'm no expert on making fire with rocks, but have read about it quite a lot. It has to do with silica content (sand) and iron content. the instant of the strike, the silica rock "peels" part of the iron rock and the resulting friction causes the iron to "superheat". One of those unrestrained chain reactions we talk about with fire.