The Sacred Chalice of Rixx is an artifact of arguable importance to the Betazoids. In the 24th century, Lwaxana Troi, daughter of the Fifth House of Betazed, was holder of the Sacred Chalice – something she never failed to mention in formal introductions. (TNG: "Haven", "Half a Life"; DS9: "The Forsaken") However, in a private conversation between Deanna Troi and Lwaxana, Deanna stated dismissively that the Sacred Chalice of Rixx is merely "an old clay pot with mold growing inside it." (TNG: "Ménage à Troi")
According to the non-canon short story "The Ceremony of Innocence is Drowned" by Keith R.A. DeCandido in the collection Tales of the Dominion War, the Sacred Chalice of Rixx was destroyed along with the Holy Rings of Betazed when Lwaxana Troi's home was levelled during the Dominion invasion of Betazed.