Geminio

"Hermione screamed in pain, and Harry turned his wand on her in time to see a jeweled goblet tumbling from her grip. But as it fell, it split, became a shower of goblets, so that a second later, with a great clatter, the floor was covered in identical cups rolling in every direction, the original impossible to discern amongst them."

- Description of Geminio used with Flagrante

Geminio is a spell that duplicates an object.

It was used by Hermione Granger in 1997 to create a passable duplicate of Salazar Slytherin's Locket which contained one of Lord Voldemort's horcruxes. Gringotts Wizarding Bank also employs it, in conjuction with Flagrante, as a security measure in the Lestrange Vault.

Behind the scenes

 * The name is possibly a reference to the constellation and third sign of the zodiac, Gemini - the Twins. The Latin word gemini also means "twins".

Appearances

 * Harry Potter and the Deathly Hallows