Kooky Keith Richards may soon have some new ashes to snort — those of his beloved 91-year-old mom, who died over the weekend.

Doris Richards, who suffered from cancer, quietly passed away in her sleep Saturday, a rep for the pickled Rolling Stone guitarist said yesterday.

Her son made headlines earlier this month when he infamously told an interviewer he had mixed some of late dad Bert's ashes with cocaine — and then snorted them up his nose as a tribute to his old man.

"He was cremated, and I couldn't resist grinding him up with a little bit of blow. It went pretty well, and I'm still alive," the wrinkly but still renegade rocker said at the time.

Richards, 63, later insisted that he was just kidding.

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