Title: Arsenic and Antimony
Author: Nym Washi
Summary: A planet holds possibilities SG-1 never imagined, but what happens when they screw it up?
Season: Future-I've seen up to Space Race
Spoilers: Anything up to mid Season Seven
Rating: PG
Pairings: Nothing other than show scripted canon
Archive: Please ask me first
Disclaimer: If I owned them the series would be different, just borrowing, I'll clean up when I'm done.

Teal'c trailed behind the group as they walked out of the infirmary. Daniel Jackson was talking animatedly with a group of the alien beings, while Colonel O'Neill and Major Carter were speaking in hushed tones slightly behind them.

The ground suddenly shook and the group paused a moment, before they resumed their course. Even though the beings had never experienced earthquakes before they were adapting quickly. Colonel O'Neill and Major Carter had broken apart, O'Neill moving up closer to Daniel Jackson while the Major remained in her position now busily fiddling with some sort of hand held device.

Teal'c moved up next to Sam and peered over her shoulder, seeing the shadow fall over the display the Major turned and smiled a small tight smile.

Hi Teal'c.

Major Carter. What are you endeavouring to do? He asked her. Sam opened her palm to show Teal'c.

It's the same device I used on K'Tau, to determine what had actually occurred when we passed through the wormhole. Colonel O'Neill wanted me to find out if there was any connection between the earthquakes and our arrival.

Have you made any headway in your investigation? Sam nodded slightly.

Whereas Earth and Chulak are primarily made up of carbon elements, the planet here seems to be silicone based. Also...that's weird. Sam pressed a further series of buttons.

Have you made a further discovery Major Carter? Teal'c inquired.

Oxygen levels have risen, much higher than at the gate, to a long term tolerable level. But there's no indication of a natural production system. The group had now passed out of the building. As they walked into the outdoor area, Dr. Jackson almost squealed in excitement. The culture had an impressive stage of development, comparable if not surpassing that of Earth's.

Sam was still muttering next to Teal'c, comparing content levels and cross examining. That can't be right. She said before pressing another series of buttons.

Something wrong Carter? Jack asked having sidled back to the other pair.

Sir, it appears PX3-721 is far different than I originally anticipated, the planetary crust make up alone is unimaginable, if I only had more equipment with me to....

The Colonel cut her off. Sam jumped slightly.

Sir, I believe the planets industrialised culture is producing oxygen as a by product as opposed to carbon dioxide on Earth.

And this means? Jack asked.

Other than that we'll be able to breathe easier, it's a polar opposite to Earth sir. And as it stands I'm yet to figure out why I'm not picking up the aliens bio signs. Though I have some theories

Which would be? O'Neill pressed, he needed to know, even theoretically, what they were dealing with.

Well, it's possible the device is malfunctioning, which I feel is unlikely. Barring that the next most likely cause would be the possibility that the aliens are a differently based life form.

Based how Carter, cut to the point.

Based on what I know and the physical appear...They're not fundamentally made up of carbon like us sir, meaning they never came from Earth. They are a completely different type of creature, more so than anything we've encountered. The Colonel was about to ask another question when the ground shook again, it was stronger this time and followed by Daniel's shout.

The trio took off to the groups of aliens only a few meters ahead. Daniel had pulled one of the aliens back from what appeared to be a fissure in the ground. A purple gas was spewing forth causing the other two creatures that had accompanied them to gasp for breath before collapsing on the ground.

The ground shook again, opening another fissure directly between Jack and Carter, completely shrouding the pair in whatever the gas was that was streaming from the ground.

Nym - 18/5/04 Oh wow! Another, I promised I'd update soon. But I'm evil and there's a CLIFFHANGER! Dum dum dummmmm!