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Large alien crystal

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Icon disambig.svg
For an overview of alien crystals in the Fallout series of games, see alien crystal.
Large alien crystal
Large Alien Crystal.png
Icon FO3MZ crystal.png
UsesRock-It Launcher ammunition
Base IDxx00a9e6
Gametitle-FO3 MZ.png
Gametitle-FO3 MZ.png

Large alien crystals are miscellaneous items that can be found and obtained in the Fallout 3 add-on Mothership Zeta.


These crystals are entirely weightless, and have a base value of 20 bottle caps each. They have no other known use besides bartering, Rock-It Launcher ammunition, or as a house decoration.


They are found scattered aboard Mothership Zeta on various aliens, or lying randomly on tables or shelves among other alien aesthetics.