a compressed implant composite for repairing mineralized tissue . the compressed implant composite includes a matrix formed of biopolymeric fibers and a plurality of calcium - and / or silicate - based mineral particles dispersed in the matrix . the matrix constitutes 4 to 80 % by weight and the mineral particles constitute 20 to 96 % by weight of the composite . the composite is free of soluble collagen and is expandable to a volume 2 to 100 times of its compressed volume . also disclosed are methods of preparing the above - described composite .