Can a warlock with pact of the blade bind a non-magical weapon to be their pact weapon?

In the pact of the blade text, the following is read:

… You can transform one magic weapon into your pact weapon by performing a special ritual while you hold the weapon. …

This indicates to me that only magical weapons can be bound in this way. Does that mean a silvered weapon, adamantine weapon, or even just a entirely mundane weapon is unable to be bound in this manner?

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