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Marines Investigate Burning Rock Source

Authorities are trying to figure out where the phosphorus rock came from that gave a San Clemente woman third-degree burns in May.

As a San Clemente woman heals from third-degree burns inflicted by mysterious beach rocks that ignited in her pocket, the Marine Corps has entered the investigation to figure out what happened.

“We’ve already intiated an internal investigation to determine the possible origins of the rocks,” said Camp Pendleton spokesman Capt. Barry Edwards. "We’re going to conduct a thorough investigation.”

No timetable has been set for finishing the study. The rocks were found to contain combustible phosphorus, but their source remains a mystery.

Officials from the San Diego Department of Environmental Health said their counterparts in Orange County thoroughly investigated the area of San Onofre Beach where the woman found the rocks, which ignited in her pants after she returned to her north San Clemente home.

Investigators with the county determined the beach was safe.

“We don’t have any plans to investigate further based on everything that the Orange County people found," said Gig Conaughton, spokesman for the San Diego County Department of Environmental Health. “They already canvassed the area trying to find anything else and they haven’t.”

For now, it's still unclear why the rocks burst into flame.

“At this point, it’s still something of a mystery,” Conaughton continued. “There’s no evidence to indicate a source.”

Phosphorus is used in several ways in munitions. San Onofre State Beach is leased from land owned by the Marine base, and San Clemente Island off the coast is a live fire range for the Navy.

The Orange County Register reported that the woman and her husband (who burned his hand trying to help her) are healing well after skin grafts.

Eric Bergstrom June 9, 2012 at 11:20 am
When the victim picked up the rock initially, it wasn't burning. Please have a scientific expert and/or the victim tell us what the catalyst was to ignite the rock.
Was it exposure to air after it was in her pocket? Was it body heat? Did it come in contact with another chemical?
Mark Tober June 9, 2012 at 11:43 am
That is very bizarre. Feel so sorry for this poor woman and her husband. Who would ever imagine a seemingly harmless rock would spontaneously burst into flames!
dan crabtree June 10, 2012 at 09:47 pm
The burning rock signafies the last days..
Father Katz June 10, 2012 at 10:44 pm
Dan Crabtree - Thanks for the deep insight
Bob H June 10, 2012 at 11:34 pm
Looks like Phoshorus granade.
Nosce te Ipsum June 10, 2012 at 11:51 pm
Why are the Marines investigating? Why an "internal" investigation?
Duke of URL June 10, 2012 at 11:56 pm
The "last days" have been scaring children for years. Nobody here will ever experiance "last day" unless Santa says it's so
wanda June 11, 2012 at 02:15 am
Creepy and very unusual, I hope they find out soon.Whats next,Gee the beach and rocks are dangerous.Come on,something else covert operations maybe some hivgh tech activity here,thats what it seems like.
Budd B June 11, 2012 at 09:04 am
In the 70s I worked at a plant that made liquid yellow phosphorus. When it cooled it turned solid. It had to be under water at all times. When it is exposed to oxygen it ignites. It will burn until it is burned up or covered with water. I have had my work clothes catch fire after they would dry. I have had my boots catch fire in my car on the way home from work. It is very toxic also.
Patricia Tardugno June 11, 2012 at 11:09 am
The rocks were on the beach & probably wet, but they were just laying there idle. When she put them in her pocket, they were drying out & rubbing together. By the time she got home, the rocks were completely dry, & she forgot about them, they continued clacking & rubbing against each other, until the sparked. Since they werre coated with phosphorus (or like matches are coated with sulfur) they ignited, catching her clothes on fire. She was probably surprised & could not figure out why she was suddenly suffering from what seemed like "spontaineous human combustion". Surely, she & her husband both freaked out as they tried to extinguish the flames.
The real question is; How did the rocks get coated with phosphorus, &/or how did they end up on that beach?!
Patricia Tardugno June 11, 2012 at 11:17 am
Oh, thanks Budd. I didn't know all that! So, now they need to find out where the phosphorus came from. Now, I think someone is trying to make it seem like a mysterious "similar to religious" (like the plague of fire) event,... by having the rocks distributed near shorelines, so they ignite here & there, but speradically & mysteriously. Apparently the people weren't necessarily supposed to pick them up. AND, whoever is dropping them around, probably expects that all the phosphorus would burn off, leaving no trace evidence of why it ignited in the 1st place.
Patricia Tardugno June 11, 2012 at 11:20 am
They should look for evidence of those rocks wherever the "wildfires" have ignited. It may be the way they cannot figure out how all those fires have been starting in California, & now New Mexico, & Colorado.
doublebatterylifecom June 11, 2012 at 11:52 am
Maybe its unburned residue from a rocket that hit the water and quit burning..later it washed up on the beach ? OR , maybe its from fireworks factory near Fukishima.. more to come? hmmm....
River Birch June 11, 2012 at 12:28 pm
After reading the Budd B post, I suspect that this chemical was improperly buried or disposed of many years ago and now it has leached through the soil and is surfacing. The phosphorus may have had a military purpose and that is why the Marines are investigating.
bohica June 11, 2012 at 12:43 pm
from the EPA's website on fertilizer use: If improperly managed, elements of fertilizer can move into surface water through
field runoff or leach into ground water. The two main components of fertilizer that are of greatest concern to source water quality (ground water and surface water used as public drinking water supplies) are nitrogen (N) and phosphorus (P). This fact sheet focuses on the management of agricultural fertilizer applications; see the fact sheets on managing agricultural pesticide use, animal waste, and storm water runoff for other prevention measures that relate to agriculture.
Juan Gomez June 11, 2012 at 12:48 pm
The Marines ??????? Are you kidding me ???? The only thing they are trained to do is kill people, they are dumb as a box of rocks.
MFriedrich June 11, 2012 at 01:39 pm
Probably potassium chlorate or phosphorus emulsion coated by ocean salt deposits.
Add friction caused by fabric rub against salt deposits (metals) and presto. Case closed. NEXT!!! The Marines may be shoot-first-ask-questions-later-killing-machines, but they damn well know know a ton about the application, use and effects of U.S. munitions.
kstew June 11, 2012 at 07:30 pm
Luckily Juan they fight so you can voice that opinion.
coopergadog1 June 11, 2012 at 09:20 pm
Juan, Go to hell. Sgt. Cooper, USMC/ret.
Orrie Brown June 11, 2012 at 09:48 pm
I may be wrong, but I thought one was not to remove any item from a State Beach/Park. If so, that was just the beginning of the problem.
S.A.P. June 12, 2012 at 12:31 am
Juan Gomez should learn to punctuate & capitalize properly before calling those who serve our country "dumb".
Those who live in glass houses shouldn't throw boxes of rocks.
ms.sc. June 12, 2012 at 02:23 am
Orrie! Good grief! It is a State Beach..Songs or the Military need to answer questions.
ms.sc. June 12, 2012 at 02:35 am
Regardless if it was a State or Military owned beach..making it accessible to the public is under their protection domain. I feel for this lady and am grateful her children did not suffer the burns she did as well as her husband. This family was innocentely walking along the beach, picked up some rocks..now who is to blame? SONGS or Camp Pentleton? Or Nature?
S.A.P. June 12, 2012 at 04:34 pm
How about blaming who illegally took rocks from a state beach?
ms.sc. June 12, 2012 at 05:05 pm
Shipwrek, that is just lame! I can understand if it is an historic site and they are building a home out of rocks they collect...but really! I agree with Budd B and River Birch. And to Juan Gomez...you don't like America....I'm sure many would pay for a raft or give you an official Military escort out! You ungrateful jerk.
S.A.P. June 12, 2012 at 06:49 pm
ms.sc. laws should only be followed if you personally agree with them?
She did something illegal, and it had devastating consequences. I am not saying there should not be an investigation. I'm just saying that if we are going to assign blame, part of it belongs to the person who broke the law and was injured because of it. I do appreciate your answer to Juan :)
ms.sc. June 12, 2012 at 09:06 pm
Well put Shipwrek. I did not realize picking up a couple of rocks was illegal. And Juan can sail south anytime on my dime.

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