The cartilage matrix is calcified (purple), and one small area of bone deposition, has begun on it (the red color at the upper right).The small cells caught in the red matrix are osteocytes.

• 钙化的软骨染色成紫色，有一小部分已有骨基质沉着而染色成深紫色（左下脚处），此处的细胞为成骨细胞。