The occurrence of specific cytoplasmic granules in the osteoclast.
D000818:Animals; D001862:Bone Resorption; D003593:Cytoplasm; D003594:Cytoplasmic Granules; D004838:Epiphyses; D005269:Femur; D005333:Fetus; D006056:Golgi Apparatus; D006651:Histocytochemistry; D008854:Microscopy, Electron; D010010:Osteoclasts / Q000166:cytology*; D051381:Rats; D013977:Tibia