This is fan theory about meteorites plus something else... Might contain spoilers so I'll just put it in the tag.
Spoiler:
Apparently there are the Meteorite items you can receive in ORAS, but these stones somehow have DNA icons on them...
From reddit:
Meteorite - A Meteorite that you got at Mt. Chimney. It continues to give off a faint glow and is slightly warm to the touch.
Meteorite - A Meteorite that you got at Mt. Chimney. Some sort of pattern has risen to the surface, and it's shining with seven colors of light.
These so called "Meteorites" all have Mega Symbols in them. One of them even states in their item description that "some sort of pattern has risen to the surface".
In the end-game, after completing the League and possibly also the Delta Episode, NPCs starts talking about new Pokémon who are reacting to new Mega Stones. My theory is, that these "Mega Meteorites" might just be those new Mega Stones. Perhaps they'll be usable in the next game? Or if ORAS receives a DLC? Or after a certain amount of playtime has passed, just as people speculate with the Battle Frontier."
Also, there's a mega cuff item spotted. As of now, there is still no definite clue as to who uses this mega item.
From reddit:
Meteorite - A Meteorite that you got at Mt. Chimney. It continues to give off a faint glow and is slightly warm to the touch.
Meteorite - A Meteorite that you got at Mt. Chimney. Some sort of pattern has risen to the surface, and it's shining with seven colors of light.
These so called "Meteorites" all have Mega Symbols in them. One of them even states in their item description that "some sort of pattern has risen to the surface".
In the end-game, after completing the League and possibly also the Delta Episode, NPCs starts talking about new Pokémon who are reacting to new Mega Stones. My theory is, that these "Mega Meteorites" might just be those new Mega Stones. Perhaps they'll be usable in the next game? Or if ORAS receives a DLC? Or after a certain amount of playtime has passed, just as people speculate with the Battle Frontier."
Also, there's a mega cuff item spotted. As of now, there is still no definite clue as to who uses this mega item.