Luigi’s Mansion 3: All 9F Gem Locations – Collected All Unnatural Museum Gems

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Once you’ve tracked down and caught that pesky Polterkitty you will gain access to the Unnatural History Museum on Floor 9. This floor is like every other floor in Luigi’s Mansion 3 as it has six gems to collect. To help you collect every Unnatural History Museum gem, consult the All 9F Gem locations guide below.

Red Gem Location: Chest in Elevator Hall

Image showing the Red Gem Location Chest in Elevator Hall.

From the starting elevator walk forward until you reach the desk here. Vacuum up the desk and chair to flip it over revealing a chest. Inside the chest is the Red Gem.

Blue Gem Location: Hidden Safe in Elevator Hall

Image showing the Blue Gem Location Hidden Safe in Elevator Hall.

On the left side of Elevator Hall you will see a number of flowers near a column on the right. Vacuum up the flowers to reveal a switch on tje column. Flashlight the switch to reveal a hidden safe. Flashlight the safe to open it and get the Blue Gem.

Yellow Gem Location: Display Case in Elevator Hall

Image showing the Yellow Gem Location Display Case in Elevator Hall.

To the right of the entrance to the Exhibit Hall you will see a display case with the Yellow Gem inside it. Use a fossil from the boss fight to break the display case open.

Purple Gem Location: Display Case in Elevator Hall

Image showing the Purple Gem Location Display Case in Elevator Hall.

This gem is also located in a display case, but you won’t see the gem until you shine the Dark Light on it. Take the fossil or Toad and head to the display case in the bottom left corner of the Elevator Hall. Break the display case open and use your Dark Light to reveal the Purple Gem.

Green Gem Location: Bones Above Elevator

Image showing the Green Gem Location Bones Above Elevator.

Above the entrance to the elevator there is a pterodactyl suspended from the ceiling. Shoot something at these bones to get the Green Gem.

White Gem Location: Display Case in Elevator Hall

Image showing the White Gem Location: Display Case in Elevator Hall.

Yet another gem inside a display case in the Elevator Hall. Take something to destroy the case with to the bottom right corner of the Elevator Hall. Destroy the case to reveal a ghost. Defeat this ghost to get the White Gem.

Collect all six of the gems listed above to get the All Unnatural Museum Gems achievement. Collect this achievement if you wish to 100% the game.

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