Board Thread:General Discussion/@comment-26630729-20150710105938

Leisha Medina (the Voice actor for Steven in the Spanish dub) posted on this on her Twitter. "en el episodio 65 keystone motel no aparece #sardonyx. Pasa otra cosa... Sardonyx solo aparece en el episodio 64." Which translates to "In episode 65 keystone motel #sardonyx does not appear. Sardonyx only appears in episode 64."

So the "week of sardonyx" may just be the "day of sardonyx". If you want to check out her Twitter it's @leishamedina 