“Not only were she and I part of the magical family of Fleetwood Mac, to me Christine was a musical comrade, a friend, a soul mate, a sister," he wrote.
The 69-year-old is currently recuperating after undergoing emergency open heart surgery last week.
The legendary rock band "strongly disputes" Buckingham's allegations.
The guitarist will not play with the band on its upcoming tour.
The Return of Tusk: Fleetwood Mac's Exotic Classic Expands, Plus Anomalisa, Myriam Phiro, Jeremy Nash, American Darlings, The Paperboys, and Sea Caves Exclusives
With the release of the super-deluxe Tusk and its abundant, additional content--including a vinyl pressing--this head-scratcher of an album both gets its due and a thorough examination.
Tonight, I'm joined by Rock and Roll Hall of Famer Lindsey Buckingham, who reflects on his career with one of the most critically acclaimed musical groups of all time, Fleetwood Mac.
Putting on a show to match the grandeur and longevity of Fleetwood Mac is a massive undertaking, but Stevie Nicks needed just a minute to personalize it for the crowd of mostly Coloradans in the sold-out Pepsi Center on Dec. 12, 2014.