There are calcium oxalate crystals in the leaves, plant type, but could not find the calcium crystals 12 oxalate in leaf plants, 8 kinds of fried katkwangtung. Lettuce Mint, basil, Lemon Basil charantia vegetables sweet and wild Basil. The shape of crystallization of calcium oxalate crystals are found in 5 star images-image Prism needle. Shaped rods and sand